-7x=13+8

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Solution for -7x=13+8 equation:



-7x=13+8
We move all terms to the left:
-7x-(13+8)=0
We add all the numbers together, and all the variables
-7x-21=0
We move all terms containing x to the left, all other terms to the right
-7x=21
x=21/-7
x=-3

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