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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