-12=-3h+0.2(20-6h)

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Solution for -12=-3h+0.2(20-6h) equation: 



-12=-3h+0.2(20-6h)

We move all terms to the left:

-12-(-3h+0.2(20-6h))=0

We add all the numbers together, and all the variables

-(-3h+0.2(-6h+20))-12=0



We calculate terms in parentheses: -(-3h+0.2(-6h+20)), so:

-3h+0.2(-6h+20)

We multiply parentheses

-3h-1.2h+4

We add all the numbers together, and all the variables

-4.2h+4

Back to the equation:

-(-4.2h+4)



We get rid of parentheses

4.2h-4-12=0

We add all the numbers together, and all the variables

4.2h-16=0

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

4.2h=16

h=16/4.2

h=3+2.42857142857/3

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