3(7)+7x=-21

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Solution for 3(7)+7x=-21 equation: 



3(7)+7x=-21

We move all terms to the left:

3(7)+7x-(-21)=0

We add all the numbers together, and all the variables

7x+58=0

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

7x=-58

x=-58/7

x=-8+2/7

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