7.7=8.7-0.2x

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Solution for 7.7=8.7-0.2x equation: 



7.7=8.7-0.2x

We move all terms to the left:

7.7-(8.7-0.2x)=0

We add all the numbers together, and all the variables

-(-0.2x+8.7)+7.7=0

We get rid of parentheses

0.2x-8.7+7.7=0

We add all the numbers together, and all the variables

0.2x-1=0

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

0.2x=1

x=1/0.2

x=5

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