(4x+15)+(7x+20)=8x+47

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Solution for (4x+15)+(7x+20)=8x+47 equation: 



(4x+15)+(7x+20)=8x+47

We move all terms to the left:

(4x+15)+(7x+20)-(8x+47)=0

We get rid of parentheses

4x+7x-8x+15+20-47=0

We add all the numbers together, and all the variables

3x-12=0

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

3x=12

x=12/3

x=4

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