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9) I think of a number, subtract 8 from it, then multiply the difference by 8, andsubtract 12. The result is 60. What is the number? |
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Answer» 17Step-by-step explanation:let the NUMBER be = xsubtract 8 = x-8multiply it by 8 = 8(x-8)SUBTRACT 12 = 8(x-8)-12 8(x-8)-12=60 8x-64-12=60 8x-64 = 60+12 8x = 72+64 x=136÷8 x= 17proof : 8(17-8)-12 8(9) -12 72-12 = 60 hence proved |
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