.5(x-20)=3+7x

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Solution for .5(x-20)=3+7x equation: 



.5(x-20)=3+7x

We move all terms to the left:

.5(x-20)-(3+7x)=0

We add all the numbers together, and all the variables

.5(x-20)-(7x+3)=0

We multiply parentheses

0.5x-(7x+3)-10=0

We get rid of parentheses

0.5x-7x-3-10=0

We add all the numbers together, and all the variables

-6.5x-13=0

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

-6.5x=13

x=13/-6.5

x=-2

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