125-12*(x-17) = 89
12.(x-17)= 125-89
12.(x-17) = 36
x-17 = 36:12
x-17 = 3
x= 3+17
x= 20
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Các câu hỏi tương tự
tim x thuoc Z biet
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b) /2x-3/ = 7
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Tính nhanh
a,-128.(-25+89)+128(89-125)
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