simplify 86 - [15x – 7(6x - 9) - 2{10x - 5(2 – 3x)}]
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Step-by-step explanation:
86-[15x-42x+63 -2(10x-10+15x)]
86-[-27x +63 -20x+20-30x]
86-[-77x +83]
86+77x-83
77x+3
77x = -3
x= -3/77
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