-42=12-9h

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Solution for -42=12-9h equation:


Simplifying
-42 = 12 + -9h

Solving
-42 = 12 + -9h

Solving for variable 'h'.

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

Add '9h' to each side of the equation.
-42 + 9h = 12 + -9h + 9h

Combine like terms: -9h + 9h = 0
-42 + 9h = 12 + 0
-42 + 9h = 12

Add '42' to each side of the equation.
-42 + 42 + 9h = 12 + 42

Combine like terms: -42 + 42 = 0
0 + 9h = 12 + 42
9h = 12 + 42

Combine like terms: 12 + 42 = 54
9h = 54

Divide each side by '9'.
h = 6

Simplifying
h = 6

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