4.5=7.7-0.8x

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Solution for 4.5=7.7-0.8x equation: 



4.5=7.7-0.8x

We move all terms to the left:

4.5-(7.7-0.8x)=0

We add all the numbers together, and all the variables

-(-0.8x+7.7)+4.5=0

We get rid of parentheses

0.8x-7.7+4.5=0

We add all the numbers together, and all the variables

0.8x-3.2=0

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

0.8x=3.2

x=3.2/0.8

x=4

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