X+0.2(9-x)=7.9

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Solution for X+0.2(9-x)=7.9 equation: 



X+0.2(9-X)=7.9

We move all terms to the left:

X+0.2(9-X)-(7.9)=0

We add all the numbers together, and all the variables

X+0.2(-1X+9)-(7.9)=0

We add all the numbers together, and all the variables

X+0.2(-1X+9)-7.9=0

We multiply parentheses

X-0.2X+1.8-7.9=0

We add all the numbers together, and all the variables

0.8X-6.1=0

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

0.8X=6.1

X=6.1/0.8

X=7+0.5/0.8

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