x+49=-12x+21

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Solution for x+49=-12x+21 equation: 



x+49=-12x+21

We move all terms to the left:

x+49-(-12x+21)=0

We get rid of parentheses

x+12x-21+49=0

We add all the numbers together, and all the variables

13x+28=0

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

13x=-28

x=-28/13

x=-2+2/13

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