12+0.3x=0.7(x+20)

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Solution for 12+0.3x=0.7(x+20) equation: 



12+0.3x=0.7(x+20)

We move all terms to the left:

12+0.3x-(0.7(x+20))=0



We calculate terms in parentheses: -(0.7(x+20)), so:

0.7(x+20)

We multiply parentheses

0.7x+14

Back to the equation:

-(0.7x+14)



We get rid of parentheses

0.3x-0.7x-14+12=0

We add all the numbers together, and all the variables

-0.4x-2=0

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

-0.4x=2

x=2/-0.4

x=-5

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