.2(x+40)+.2x=12

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Solution for .2(x+40)+.2x=12 equation: 



.2(x+40)+.2x=12

We move all terms to the left:

.2(x+40)+.2x-(12)=0

We add all the numbers together, and all the variables

.2x+.2(x+40)-12=0

We multiply parentheses

.2x+0.2x+8-12=0

We add all the numbers together, and all the variables

0.4x-4=0

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

0.4x=4

x=4/0.4

x=10

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