12=20-4h

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Solution for 12=20-4h equation:


Simplifying
12 = 20 + -4h

Solving
12 = 20 + -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.
12 + 4h = 20 + -4h + 4h

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

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

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

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

Divide each side by '4'.
h = 2

Simplifying
h = 2

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