-7=45-3.9c

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Solution for -7=45-3.9c equation: 



-7=45-3.9c

We move all terms to the left:

-7-(45-3.9c)=0

We add all the numbers together, and all the variables

-(-3.9c+45)-7=0

We get rid of parentheses

3.9c-45-7=0

We add all the numbers together, and all the variables

3.9c-52=0

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

3.9c=52

c=52/3.9

c=13+1/3

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