2c+7=-21

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Solution for 2c+7=-21 equation: 



2c+7=-21

We move all terms to the left:

2c+7-(-21)=0

We add all the numbers together, and all the variables

2c+28=0

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

2c=-28

c=-28/2

c=-14

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