20=-4h+12

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Solution for 20=-4h+12 equation:


Simplifying
20 = -4h + 12

Reorder the terms:
20 = 12 + -4h

Solving
20 = 12 + -4h

Solving for variable 'h'.

Move all terms containing h to the left, all other terms to the right.

Add '4h' to each side of the equation.
20 + 4h = 12 + -4h + 4h

Combine like terms: -4h + 4h = 0
20 + 4h = 12 + 0
20 + 4h = 12

Add '-20' to each side of the equation.
20 + -20 + 4h = 12 + -20

Combine like terms: 20 + -20 = 0
0 + 4h = 12 + -20
4h = 12 + -20

Combine like terms: 12 + -20 = -8
4h = -8

Divide each side by '4'.
h = -2

Simplifying
h = -2

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