12=65-0.4q

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Solution for 12=65-0.4q equation: 



12=65-0.4q

We move all terms to the left:

12-(65-0.4q)=0

We add all the numbers together, and all the variables

-(-0.4q+65)+12=0

We get rid of parentheses

0.4q-65+12=0

We add all the numbers together, and all the variables

0.4q-53=0

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

0.4q=53

q=53/0.4

q=132+0.2/0.4

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