Unit+3

=Unit 3= =Test on Tuesday, January 31st (C-day - 70 minute class)=

The following problems are homework for the month of January. The dates shown are when the homework is __**DUE**__.

 * Jan 5 - page 133 #1 to #38 (odd; do all for extra credit)
 * Jan 6 - page 135 #1 to #38 (odd; do all for extra credit)
 * Jan 9 - page 137 (class exercises) #1 to #16
 * Jan 10 - page 138 (written exercises) #1 to #42 (odd; do all for extra credit)
 * Jan 10 - page 141 (written exercises) #1 to #39 (odd; do all for extra credit)
 * Jan 11 - page 142 (self-test A) #1 to #16 (odd; do all for extra credit)
 * extra credit - page 148 #1 to #16
 * extra credit - page 150 #1 to #10
 * Jan 12 - page 283 (class exercises) #1 to #23
 * Jan 13 - page 283 (written exercises) #1 to #12
 * Jan 16 - page 284 (written exercises) #13 to #30
 * Jan 18 - page 284 (written exercises) #31 to #42
 * Jan 20 - page 284 (written exercises) #43 to #48
 * Jan 24 - page 286 (written exercises) #1 to #18 (**time given in class**)
 * Jan 24 - page 286 (written exercises) #19 to #30 (**time given in class**)
 * Jan 24 - page 286 (written exercises) #31 to #36 (**time given in class**)
 * extra credit - page 288-289 (problems) #1 to #14
 * Jan 25 - page 290 (self test A) #1 to #10
 * Jan 25 - page 290 (self test A) #11 to #16
 * Jan 26 - page 295 (written exercises) #1 to #9
 * Jan 26 - page 295 (written exercises) #10 to #18
 * Jan 27 - page 296 (written exercises "B") #25 to #52 (odd; do all for extra credit)
 * Jan 30 - page 299 (written exercises) #1 to #26
 * extra credit - page 302-303 #1 to #11

Many examples with problems fully solved:

 * 1) [|Solving Equations,][|Example 1: x + a = b]
 * 2) [|Solving Equations, Example 2: x - a = b]
 * 3) [|Solving Equations, Example 3: x + a = -b]
 * 4) [|Solving Equations, Example 4: x - a = -b]
 * 5) [|Solving Equations, Example 5: ax + b = c]
 * 6) [|Solving Equations, Example 6: ax - b = c]
 * 7) [|Solving Equations, Example 7: ax + b = -c]
 * 8) [|Solving Equations, Example 8: -ax + b = c]
 * 9) [|Solving Equations, Example 9: -ax - b = c]
 * 10) [|Solving Equations, Example 10: -ax + b = -c]
 * 11) [|Solving Equations, Example 11: -ax - b = -c]
 * 12) [|Solving Equations, Example 12: ax + b = cx + d]
 * 13) [|Solving Equations, Example 13: ax - b = cx + d]
 * 14) [|Solving Equations, Example 14: ax + b = cx - d]
 * 15) [|Solving Equations, Example 15: ax - b = cx - d]
 * 16) [|Solving Equations, Example 16: ax + b = -cx + d]
 * 17) [|Solving Equations, Example 17: ax - b = -cx + d]
 * 18) [|Solving Equations, Example 18: ax + b = -cx - d]
 * 19) [|Solving Equations, Example 19: ax - b = -cx - d]
 * 20) [|Solving Equations, Example 20: -ax + b = cx + d]
 * 21) [|Solving Equations, Example 21: -ax - b = cx + d]
 * 22) [|Solving Equations, Example 22: -ax + b = -cx + d]
 * 23) [|Solving Equations, Example 23: -ax - b = -cx + d]
 * 24) [|Solving Equations, Example 24: -ax + b = -cx + d]
 * 25) [|Solving Equations, Example 25: -ax + b = -cx - d]
 * 26) [|Solving Equations, Example 26: -ax - b = cx - d]
 * 27) [|Solving Equations, Example 27: -ax - b = -cx - d]

**__Solving Linear Equations__ (** //thanks for Carmen for contributing this video// **)**
media type="youtube" key="PC4S2QdlWno" height="319" width="568"

**__Solving Linear Equations (Patrick JMT)__**
media type="youtube" key="ldYGiXSHa_Q" height="324" width="576"

**__More examples of Solving Linear Equations (Patrick JMT)__**
media type="youtube" key="d6L-ptO-5X0" height="324" width="576"

**__Still More examples of Solving Linear Equations (Patrick JMT)__**
media type="youtube" key="f5VoZwtSy0U" height="324" width="576"

**__Checking the Solution of a Linear Equation (Patrick JMT)__**
media type="youtube" key="nQv1v8zxXs0" height="324" width="576"

**__Solving Linear Equations - Part 2 (Khan Academy)__**
media type="youtube" key="XoEn1LfVoTo" height="314" width="560"

**__Solving Linear Equations - Part 3 (Khan Academy)__**
media type="youtube" key="f15zA0PhSek" height="315" width="560"

**__Solving Linear Equations - Part 4 (Khan Academy)__**
media type="youtube" key="9IUEk9fn2Vs" height="408" width="546"

Two similiar examples:

 * ====35 + 3(2.50 + 1.50 + 1.00) --> 35 + 3(2.50) + 3(1.50) + 3(1.00) --> 35 + 15 = 50====
 * ====35 - 3(2.50 + 1.50 + 1.00) --> 35 - [ 3(2.50) + 3(1.50) + 3(1.00) ] --> 35 - 15 = 20====

Two more complicated examples:

 * ====10 + 3(5 - 3 - 2) --> 10 + 3(5) + 3(-3) + 3(-2) --> 10 + 15 + (-9) + (-6) = 10====
 * ====10 + -3(5 - 3 - 2) --> 10 + -3(5) + -3(-3) + -3(-2) --> 10 + (-15) + 9 + 6 = 0====