2.1=7.7-0.8x

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Solution for 2.1=7.7-0.8x equation: 



2.1=7.7-0.8x

We move all terms to the left:

2.1-(7.7-0.8x)=0

We add all the numbers together, and all the variables

-(-0.8x+7.7)+2.1=0

We get rid of parentheses

0.8x-7.7+2.1=0

We add all the numbers together, and all the variables

0.8x-5.6=0

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

0.8x=5.6

x=5.6/0.8

x=6+0.8/0.8

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