7h+21=6h-18

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Solution for 7h+21=6h-18 equation:


Simplifying
7h + 21 = 6h + -18

Reorder the terms:
21 + 7h = 6h + -18

Reorder the terms:
21 + 7h = -18 + 6h

Solving
21 + 7h = -18 + 6h

Solving for variable 'h'.

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

Add '-6h' to each side of the equation.
21 + 7h + -6h = -18 + 6h + -6h

Combine like terms: 7h + -6h = 1h
21 + 1h = -18 + 6h + -6h

Combine like terms: 6h + -6h = 0
21 + 1h = -18 + 0
21 + 1h = -18

Add '-21' to each side of the equation.
21 + -21 + 1h = -18 + -21

Combine like terms: 21 + -21 = 0
0 + 1h = -18 + -21
1h = -18 + -21

Combine like terms: -18 + -21 = -39
1h = -39

Divide each side by '1'.
h = -39

Simplifying
h = -39

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