5+3x-x=21

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Solution for 5+3x-x=21 equation:



5+3x-x=21
We move all terms to the left:
5+3x-x-(21)=0
We add all the numbers together, and all the variables
2x-16=0
We move all terms containing x to the left, all other terms to the right
2x=16
x=16/2
x=8

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