3x+5+7x=45+5x

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Solution for 3x+5+7x=45+5x equation: 



3x+5+7x=45+5x

We move all terms to the left:

3x+5+7x-(45+5x)=0

We add all the numbers together, and all the variables

3x+7x-(5x+45)+5=0

We add all the numbers together, and all the variables

10x-(5x+45)+5=0

We get rid of parentheses

10x-5x-45+5=0

We add all the numbers together, and all the variables

5x-40=0

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

5x=40

x=40/5

x=8

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