15-[12x+7-{11x-(8x-5_6x)+7X}-9x]
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Answer: 7x + 5x + 8
Hoped I helped! :)
-iSqlo
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15-[12x+7- {11x-(8x-5-6x)+7x} -9x]
15-[12x+7- {11x-(2x-5)+7x} -9x]
15-[12x+7- {11x-2x+5+7x} -9x]
15-[12x+7- 16x-5-9x]
15x-[-13x+2]
15x+13x-2
13x+13
x= -13/13
x=-1
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