H(-4)=3x-4^2

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Solution for H(-4)=3x-4^2 equation: 



(-4)=3H-4^2

We move all terms to the left:

(-4)-(3H-4^2)=0

We add all the numbers together, and all the variables

-(3H-4^2)-4=0

We get rid of parentheses

-3H-4+4^2=0

We add all the numbers together, and all the variables

-3H+12=0

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

-3H=-12

H=-12/-3

H=+4

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