12=-0.4(-6x-3)

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Solution for 12=-0.4(-6x-3) equation: 



12=-0.4(-6x-3)

We move all terms to the left:

12-(-0.4(-6x-3))=0



We calculate terms in parentheses: -(-0.4(-6x-3)), so:

-0.4(-6x-3)

We multiply parentheses

2.4x+1.2

Back to the equation:

-(2.4x+1.2)



We get rid of parentheses

-2.4x-1.2+12=0

We add all the numbers together, and all the variables

-2.4x+10.8=0

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

-2.4x=-10.8

x=-10.8/-2.4

x=4+1/2

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