-7.9+(0.8x)=21.5

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Solution for -7.9+(0.8x)=21.5 equation: 



-7.9+(0.8x)=21.5

We move all terms to the left:

-7.9+(0.8x)-(21.5)=0

We add all the numbers together, and all the variables

(+0.8x)-7.9-(21.5)=0

We add all the numbers together, and all the variables

(+0.8x)-29.4=0

We get rid of parentheses

0.8x-29.4=0

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

0.8x=29.4

x=29.4/0.8

x=36+0.6/0.8

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