Question 848545
1. 4x+(-12)=8
4x = 20
x = 5
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2. 6+(-x)/2=14
-x/2 = 8
x = -16
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3. -3+5x-7=20
5x - 10 = 20
5x = 30
x = 6
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Sub the answers to check.
3. -3+5x-7=20
For #3 I thought the answer was x=-2
-3 + 5*-2 =? 20
-3 -10 =? 20
-13 =? 20  doesn't work.