12-9h=-18-7h

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Solution for 12-9h=-18-7h equation:


Simplifying
12 + -9h = -18 + -7h

Solving
12 + -9h = -18 + -7h

Solving for variable 'h'.

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

Add '7h' to each side of the equation.
12 + -9h + 7h = -18 + -7h + 7h

Combine like terms: -9h + 7h = -2h
12 + -2h = -18 + -7h + 7h

Combine like terms: -7h + 7h = 0
12 + -2h = -18 + 0
12 + -2h = -18

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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