.10(x+80)+.20x=4

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Solution for .10(x+80)+.20x=4 equation: 



.10(x+80)+.20x=4

We move all terms to the left:

.10(x+80)+.20x-(4)=0

We add all the numbers together, and all the variables

.20x+.10(x+80)-4=0

We multiply parentheses

.20x+0.1x+8-4=0

We add all the numbers together, and all the variables

0.3x+4=0

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

0.3x=-4

x=-4/0.3

x=-13+0.1/0.3

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