3h-12-h=18

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Solution for 3h-12-h=18 equation:


Simplifying
3h + -12 + -1h = 18

Reorder the terms:
-12 + 3h + -1h = 18

Combine like terms: 3h + -1h = 2h
-12 + 2h = 18

Solving
-12 + 2h = 18

Solving for variable 'h'.

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

Add '12' to each side of the equation.
-12 + 12 + 2h = 18 + 12

Combine like terms: -12 + 12 = 0
0 + 2h = 18 + 12
2h = 18 + 12

Combine like terms: 18 + 12 = 30
2h = 30

Divide each side by '2'.
h = 15

Simplifying
h = 15

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