21=-7h

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Solution for 21=-7h equation:


Simplifying
21 = -7h

Solving
21 = -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.
21 + 7h = -7h + 7h

Combine like terms: -7h + 7h = 0
21 + 7h = 0

Add '-21' to each side of the equation.
21 + -21 + 7h = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 7h = 0 + -21
7h = 0 + -21

Combine like terms: 0 + -21 = -21
7h = -21

Divide each side by '7'.
h = -3

Simplifying
h = -3

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