Answer:
x=18
Step-by-step explanation:
6 - x = -12
+x +x
6=-12 + x
+12+12
18=x
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x =18
Subtract 6 from each side
6-6 - x = -12-6
-x =-18
Multiply by -1
-1*-x = -1 * -18
x = 18
