12=3+1.5h

Solution for 12=3+1.5h equation:

Simplifying
12 = 3 + 1.5h

Solving
12 = 3 + 1.5h

Solving for variable 'h'.

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

Add '-1.5h' to each side of the equation.
12 + -1.5h = 3 + 1.5h + -1.5h

Combine like terms: 1.5h + -1.5h = 0.0
12 + -1.5h = 3 + 0.0
12 + -1.5h = 3

Add '-12' to each side of the equation.
12 + -12 + -1.5h = 3 + -12

Combine like terms: 12 + -12 = 0
0 + -1.5h = 3 + -12
-1.5h = 3 + -12

Combine like terms: 3 + -12 = -9
-1.5h = -9

Divide each side by '-1.5'.
h = 6

Simplifying
h = 6