-3(x+7)=7x+49

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Solution for -3(x+7)=7x+49 equation: 



-3(x+7)=7x+49

We move all terms to the left:

-3(x+7)-(7x+49)=0

We multiply parentheses

-3x-(7x+49)-21=0

We get rid of parentheses

-3x-7x-49-21=0

We add all the numbers together, and all the variables

-10x-70=0

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

-10x=70

x=70/-10

x=-7

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