7x+21=2x+-49

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Solution for 7x+21=2x+-49 equation: 



7x+21=2x+-49

We move all terms to the left:

7x+21-(2x+-49)=0

We add all the numbers together, and all the variables

7x-(2x-49)+21=0

We get rid of parentheses

7x-2x+49+21=0

We add all the numbers together, and all the variables

5x+70=0

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

5x=-70

x=-70/5

x=-14

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