.2x-2+.1x=7

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Solution for .2x-2+.1x=7 equation: 



.2x-2+.1x=7

We move all terms to the left:

.2x-2+.1x-(7)=0

We add all the numbers together, and all the variables

0.3x-9=0

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

0.3x=9

x=9/0.3

x=30

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