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Anonymous
X=1 since 8(1)=8
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Let the number be x and so the expression is 8x
8x + 8=40 8x=40-8 8x=32 x=32/8 x=4
8(30) - 40 = 240 - 40 = 200.
18 + 8x + x = = 18 + 9x = 9(2 + x) which is the factored form of the expression.
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