2h+4.5=21

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Solution for 2h+4.5=21 equation: 


Simplifying
2h + 4.5 = 21

Reorder the terms:
4.5 + 2h = 21

Solving
4.5 + 2h = 21

Solving for variable 'h'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + 2h = 21 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 2h = 21 + -4.5
2h = 21 + -4.5

Combine like terms: 21 + -4.5 = 16.5
2h = 16.5

Divide each side by '2'.
h = 8.25

Simplifying
h = 8.25

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