9x-21=-4x+49

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Solution for 9x-21=-4x+49 equation: 



9x-21=-4x+49

We move all terms to the left:

9x-21-(-4x+49)=0

We get rid of parentheses

9x+4x-49-21=0

We add all the numbers together, and all the variables

13x-70=0

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

13x=70

x=70/13

x=5+5/13

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