-2x+21=39

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Solution for -2x+21=39 equation:



-2x+21=39
We move all terms to the left:
-2x+21-(39)=0
We add all the numbers together, and all the variables
-2x-18=0
We move all terms containing x to the left, all other terms to the right
-2x=18
x=18/-2
x=-9

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