42+f=-6f-7

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Solution for 42+f=-6f-7 equation: 



42+f=-6f-7

We move all terms to the left:

42+f-(-6f-7)=0

We get rid of parentheses

f+6f+7+42=0

We add all the numbers together, and all the variables

7f+49=0

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

7f=-49

f=-49/7

f=-7

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