91=2.5h(4+9)

Solution for 91=2.5h(4+9) equation:

Simplifying
91 = 2.5h(4 + 9)

Combine like terms: 4 + 9 = 13
91 = 2.5h(13)

Reorder the terms for easier multiplication:
91 = 2.5 * 13h

Multiply 2.5 * 13
91 = 32.5h

Solving
91 = 32.5h

Solving for variable 'h'.

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

Add '-32.5h' to each side of the equation.
91 + -32.5h = 32.5h + -32.5h

Combine like terms: 32.5h + -32.5h = 0.0
91 + -32.5h = 0.0

Add '-91' to each side of the equation.
91 + -91 + -32.5h = 0.0 + -91

Combine like terms: 91 + -91 = 0
0 + -32.5h = 0.0 + -91
-32.5h = 0.0 + -91

Combine like terms: 0.0 + -91 = -91
-32.5h = -91

Divide each side by '-32.5'.
h = 2.8

Simplifying
h = 2.8