3q+21-5q=7q-13

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Solution for 3q+21-5q=7q-13 equation: 



3q+21-5q=7q-13

We move all terms to the left:

3q+21-5q-(7q-13)=0

We add all the numbers together, and all the variables

-2q-(7q-13)+21=0

We get rid of parentheses

-2q-7q+13+21=0

We add all the numbers together, and all the variables

-9q+34=0

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

-9q=-34

q=-34/-9

q=3+7/9

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