18=30-3h

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Solution for 18=30-3h equation:


Simplifying
18 = 30 + -3h

Solving
18 = 30 + -3h

Solving for variable 'h'.

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

Add '3h' to each side of the equation.
18 + 3h = 30 + -3h + 3h

Combine like terms: -3h + 3h = 0
18 + 3h = 30 + 0
18 + 3h = 30

Add '-18' to each side of the equation.
18 + -18 + 3h = 30 + -18

Combine like terms: 18 + -18 = 0
0 + 3h = 30 + -18
3h = 30 + -18

Combine like terms: 30 + -18 = 12
3h = 12

Divide each side by '3'.
h = 4

Simplifying
h = 4

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