7-5x=21+2x

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Solution for 7-5x=21+2x equation:



7-5x=21+2x
We move all terms to the left:
7-5x-(21+2x)=0
We add all the numbers together, and all the variables
-5x-(2x+21)+7=0
We get rid of parentheses
-5x-2x-21+7=0
We add all the numbers together, and all the variables
-7x-14=0
We move all terms containing x to the left, all other terms to the right
-7x=14
x=14/-7
x=-2

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