Question

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Answer 1

Y-5=-2x-12
+5      +5
y  = -2x-7
+2x    +2x
y+2x=-7
-y      -y


2x=-7-y

Answer 2

Multiply -2 with x equaling -2x
Multiply -2 with +6 equaling -12
Y - 5 = -2x - 12
Add 12 on both sides
Y - 5 + 12 = -2x - 12 + 12
Y + 7 = -2x
Divide by -2 on both sides

Y + 7 / -2 = -2x/-2

Y + 7
------- = x
- 2