H-h+2h-h-1=18

Solution for H-h+2h-h-1=18 equation:

Simplifying
H + -1h + 2h + -1h + -1 = 18

Reorder the terms:
-1 + H + -1h + 2h + -1h = 18

Combine like terms: -1h + 2h = 1h
-1 + H + 1h + -1h = 18

Combine like terms: 1h + -1h = 0
-1 + H + 0 = 18
-1 + H = 18

Solving
-1 + H = 18

Solving for variable 'H'.

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

Add '1' to each side of the equation.
-1 + 1 + H = 18 + 1

Combine like terms: -1 + 1 = 0
0 + H = 18 + 1
H = 18 + 1

Combine like terms: 18 + 1 = 19
H = 19

Simplifying
H = 19