42=3(2-h)-6h

Solution for 42=3(2-h)-6h equation:

42=3(2-h)-6h

We move all terms to the left:

42-(3(2-h)-6h)=0

We add all the numbers together, and all the variables

-(3(-1h+2)-6h)+42=0


We calculate terms in parentheses: -(3(-1h+2)-6h), so:

3(-1h+2)-6h

We add all the numbers together, and all the variables

-6h+3(-1h+2)

We multiply parentheses

-6h-3h+6

We add all the numbers together, and all the variables

-9h+6

Back to the equation:

-(-9h+6)


We get rid of parentheses

9h-6+42=0

We add all the numbers together, and all the variables

9h+36=0

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

9h=-36

h=-36/9

h=-4