H+21=-51

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Solution for H+21=-51 equation: 


Simplifying
H + 21 = -51

Reorder the terms:
21 + H = -51

Solving
21 + H = -51

Solving for variable 'H'.

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

Add '-21' to each side of the equation.
21 + -21 + H = -51 + -21

Combine like terms: 21 + -21 = 0
0 + H = -51 + -21
H = -51 + -21

Combine like terms: -51 + -21 = -72
H = -72

Simplifying
H = -72

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