-7c-4=-9c-20

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Solution for -7c-4=-9c-20 equation: 



-7c-4=-9c-20

We move all terms to the left:

-7c-4-(-9c-20)=0

We get rid of parentheses

-7c+9c+20-4=0

We add all the numbers together, and all the variables

2c+16=0

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

2c=-16

c=-16/2

c=-8

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