7h+12-5h=42

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Solution for 7h+12-5h=42 equation:


Simplifying
7h + 12 + -5h = 42

Reorder the terms:
12 + 7h + -5h = 42

Combine like terms: 7h + -5h = 2h
12 + 2h = 42

Solving
12 + 2h = 42

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 = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 2h = 42 + -12
2h = 42 + -12

Combine like terms: 42 + -12 = 30
2h = 30

Divide each side by '2'.
h = 15

Simplifying
h = 15

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