I think of a number I multiply it by 5 then subtract 8 The result is 3 times the number I am thinking of What is the number

asked Mar 9, 2016 80.7k views

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I think of a number

I multiply it by 5 then subtract 8
The result is 3 times the number I am thinking of
What is the number

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4 votes

$x\cdot5-8=3x\\ 5x-3x=8\\ 2x=8\\ x=4$

Hoyhoy answered Mar 11, 2016

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1 vote

$\bold{x=the~number} \\ \bold{5x-8=3x} \\ \bold{5x-3x=8} \\ \bold{2x=8} \\ \boxed{\bold{x=4}}$

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