5f+6+2f-21=10f+3

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Solution for 5f+6+2f-21=10f+3 equation: 



5f+6+2f-21=10f+3

We move all terms to the left:

5f+6+2f-21-(10f+3)=0

We add all the numbers together, and all the variables

7f-(10f+3)-15=0

We get rid of parentheses

7f-10f-3-15=0

We add all the numbers together, and all the variables

-3f-18=0

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

-3f=18

f=18/-3

f=-6

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