30=q+4.2

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Solution for 30=q+4.2 equation: 



30=q+4.2

We move all terms to the left:

30-(q+4.2)=0

We get rid of parentheses

-q-4.2+30=0

We add all the numbers together, and all the variables

-1q+25.8=0

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

-q=-25.8

q=-25.8/-1

q=25+0.8/1

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