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-2(-c-20)=-2-20
We move all terms to the left:
-2(-c-20)-(-2-20)=0
We add all the numbers together, and all the variables
-2(-1c-20)-(-22)=0
We add all the numbers together, and all the variables
-2(-1c-20)+22=0
We multiply parentheses
2c+40+22=0
We add all the numbers together, and all the variables
2c+62=0
We move all terms containing c to the left, all other terms to the right
2c=-62
c=-62/2
c=-31
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