105-7x=2x+42

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Solution for 105-7x=2x+42 equation: 



105-7x=2x+42

We move all terms to the left:

105-7x-(2x+42)=0

We get rid of parentheses

-7x-2x-42+105=0

We add all the numbers together, and all the variables

-9x+63=0

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

-9x=-63

x=-63/-9

x=+7

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