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26 votes
26 votes
15 more than five times a number is equal to the difference between -57 and three times the number find the number

User Jakob Danielsson
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1 Answer

8 votes
8 votes

Let the number = x

The five times the number will be 5x

15 more than five times a number will be = 5x + 15

the difference between -57 and three times the number will be -57 - 3x

So,


5x+15=-57-3x

Solve for x:


\begin{gathered} 5x+3x=-57-15 \\ 8x=-72 \\ \\ x=-(72)/(8)=-9 \end{gathered}

So, the answer will be the number = -9

User Candela
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3.1k points