7x+13=7x+3x+42

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Solution for 7x+13=7x+3x+42 equation: 



7x+13=7x+3x+42

We move all terms to the left:

7x+13-(7x+3x+42)=0

We add all the numbers together, and all the variables

7x-(10x+42)+13=0

We get rid of parentheses

7x-10x-42+13=0

We add all the numbers together, and all the variables

-3x-29=0

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

-3x=29

x=29/-3

x=-9+2/3

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