-7x+3x=7x+21

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Solution for -7x+3x=7x+21 equation:



-7x+3x=7x+21
We move all terms to the left:
-7x+3x-(7x+21)=0
We add all the numbers together, and all the variables
-4x-(7x+21)=0
We get rid of parentheses
-4x-7x-21=0
We add all the numbers together, and all the variables
-11x-21=0
We move all terms containing x to the left, all other terms to the right
-11x=21
x=21/-11
x=-1+10/11

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