5x-21=-2x+100-4x

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Solution for 5x-21=-2x+100-4x equation: 



5x-21=-2x+100-4x

We move all terms to the left:

5x-21-(-2x+100-4x)=0

We add all the numbers together, and all the variables

5x-(-6x+100)-21=0

We get rid of parentheses

5x+6x-100-21=0

We add all the numbers together, and all the variables

11x-121=0

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

11x=121

x=121/11

x=11

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