3(20+h)=90

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Solution for 3(20+h)=90 equation: 


Simplifying
3(20 + h) = 90
(20 * 3 + h * 3) = 90
(60 + 3h) = 90

Solving
60 + 3h = 90

Solving for variable 'h'.

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

Add '-60' to each side of the equation.
60 + -60 + 3h = 90 + -60

Combine like terms: 60 + -60 = 0
0 + 3h = 90 + -60
3h = 90 + -60

Combine like terms: 90 + -60 = 30
3h = 30

Divide each side by '3'.
h = 10

Simplifying
h = 10

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