-x+2(7)=-21

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Solution for -x+2(7)=-21 equation: 



-x+2(7)=-21

We move all terms to the left:

-x+2(7)-(-21)=0

We add all the numbers together, and all the variables

-1x+48=0

We move all terms containing x to the left, all other terms to the right

-x=-48

x=-48/-1

x=+48

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