7x+3(3x+15)=157

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Solution for 7x+3(3x+15)=157 equation: 



7x+3(3x+15)=157

We move all terms to the left:

7x+3(3x+15)-(157)=0

We multiply parentheses

7x+9x+45-157=0

We add all the numbers together, and all the variables

16x-112=0

We move all terms containing x to the left, all other terms to the right

16x=112

x=112/16

x=7

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