11x + 12 = 8x - 9 ... please
2 answers:
Inverse operations should be your first choice
11x+12=8x-9
-8x. -8x
3x+12=-9
-12 -12
3x=-21
Dived both side by 3
X=-7
Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Subtract 12 From Both Sides

[ Step Two ] Simplify

[ Step Three ] Subtract 8x From Both Sides

[ Step Four ] Simplify

[ Step Five ] Divide Both Sides By 3

[ Step Six ] Simplify

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