21-h=15

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Solution for 21-h=15 equation:


Simplifying
21 + -1h = 15

Solving
21 + -1h = 15

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 + -1h = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -1h = 15 + -21
-1h = 15 + -21

Combine like terms: 15 + -21 = -6
-1h = -6

Divide each side by '-1'.
h = 6

Simplifying
h = 6

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