-0.1(a+4)-0.02(-2a+4)=0.12

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Solution for -0.1(a+4)-0.02(-2a+4)=0.12 equation: 



-0.1(a+4)-0.02(-2a+4)=0.12

We move all terms to the left:

-0.1(a+4)-0.02(-2a+4)-(0.12)=0

We add all the numbers together, and all the variables

-0.1(a+4)-0.02(-2a+4)-0.12=0

We multiply parentheses

-0.1a+0.04a-0.4-0.08-0.12=0

We add all the numbers together, and all the variables

-0.06a-0.6=0

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

-0.06a=0.6

a=0.6/-0.06

a=-10

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