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Thursday, March 14, 2013

Two Step Algebra Can

Two Step Algebra

Question 1:

4x - 4 = 0
4x - 4 + 4 = 0 + 4
4x = 4
4      4
x = 1

Verify:

4x - 4 = 0
4(1) - 4 = 0
4 - 4 = 0
0 = 0

Question 2:

10x - 15 = 35
10x - 15 + 15 = 35 + 15
10x = 50
10      10
x = 5

Verify:
10x - 15 = 35
10(5) - 15 = 35
50 - 15 = 35
35 = 35

Question 3:

r - 6 = 7 
-3
r -6 + 6 = 7 + 6
-3 
r = 13
-3
(-3) r = 13 (-3)
      -3
r = - 39

Verify:

r - 6 = 7
-3
39 - 6 = 7
-3
-13 - 6 = 7
7 = 7

 

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