20c+(-2c)=18

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Solution for 20c+(-2c)=18 equation: 



20c+(-2c)=18

We move all terms to the left:

20c+(-2c)-(18)=0

We get rid of parentheses

20c-2c-18=0

We add all the numbers together, and all the variables

18c-18=0

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

18c=18

c=18/18

c=1

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