12=-2h+.2(20-6h)

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Solution for 12=-2h+.2(20-6h) equation:


Simplifying
12 = -2h + 0.2(20 + -6h)
12 = -2h + (20 * 0.2 + -6h * 0.2)
12 = -2h + (4 + -1.2h)

Reorder the terms:
12 = 4 + -2h + -1.2h

Combine like terms: -2h + -1.2h = -3.2h
12 = 4 + -3.2h

Solving
12 = 4 + -3.2h

Solving for variable 'h'.

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

Add '3.2h' to each side of the equation.
12 + 3.2h = 4 + -3.2h + 3.2h

Combine like terms: -3.2h + 3.2h = 0.0
12 + 3.2h = 4 + 0.0
12 + 3.2h = 4

Add '-12' to each side of the equation.
12 + -12 + 3.2h = 4 + -12

Combine like terms: 12 + -12 = 0
0 + 3.2h = 4 + -12
3.2h = 4 + -12

Combine like terms: 4 + -12 = -8
3.2h = -8

Divide each side by '3.2'.
h = -2.5

Simplifying
h = -2.5

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