8-7c=-9c

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Solution for 8-7c=-9c equation: 



8-7c=-9c

We move all terms to the left:

8-7c-(-9c)=0

We get rid of parentheses

-7c+9c+8=0

We add all the numbers together, and all the variables

2c+8=0

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

2c=-8

c=-8/2

c=-4

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