13h+21=-18

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Solution for 13h+21=-18 equation: 


Simplifying
13h + 21 = -18

Reorder the terms:
21 + 13h = -18

Solving
21 + 13h = -18

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 + 13h = -18 + -21

Combine like terms: 21 + -21 = 0
0 + 13h = -18 + -21
13h = -18 + -21

Combine like terms: -18 + -21 = -39
13h = -39

Divide each side by '13'.
h = -3

Simplifying
h = -3

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