126=3x+7x

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Solution for 126=3x+7x equation: 



126=3x+7x

We move all terms to the left:

126-(3x+7x)=0

We add all the numbers together, and all the variables

-(+10x)+126=0

We get rid of parentheses

-10x+126=0

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

-10x=-126

x=-126/-10

x=12+3/5

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