80=70-q-q-2q

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Solution for 80=70-q-q-2q equation: 



80=70-q-q-2q

We move all terms to the left:

80-(70-q-q-2q)=0

We add all the numbers together, and all the variables

-(-4q+70)+80=0

We get rid of parentheses

4q-70+80=0

We add all the numbers together, and all the variables

4q+10=0

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

4q=-10

q=-10/4

q=-2+1/2

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