3h=7(0.2-0.42h)-10

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Solution for 3h=7(0.2-0.42h)-10 equation: 



3h=7(0.2-0.42h)-10

We move all terms to the left:

3h-(7(0.2-0.42h)-10)=0

We add all the numbers together, and all the variables

3h-(7(-0.42h+0.2)-10)=0



We calculate terms in parentheses: -(7(-0.42h+0.2)-10), so:

7(-0.42h+0.2)-10

We multiply parentheses

0h+1.4-10

We add all the numbers together, and all the variables

h-8.6

Back to the equation:

-(h-8.6)



We get rid of parentheses

3h-h+8.6=0

We add all the numbers together, and all the variables

2h+8.6=0

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

2h=-8.6

h=-8.6/2

h=-4+0.6/2

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