Answer:
1. B
2. A
3. I
4. F
Explanation:
1. 8x +15 = 7
minus 15 from 7
8x = -8
divide by 8
x=-1
2. 12x -42 = 18
add 42
12 x = 60
divide by 12
x=5
3. 15 +8x = 47
minus 15
8x = 32
x=4
4. 17 -4x =33
minus 17
-4x = 16
divide by -4
x= -4
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