12=0.5*4*h

Solution for 12=0.5*4*h equation:

Simplifying
12 = 0.5 * 4h

Multiply 0.5 * 4
12 = 2h

Solving
12 = 2h

Solving for variable 'h'.

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

Add '-2h' to each side of the equation.
12 + -2h = 2h + -2h

Combine like terms: 2h + -2h = 0
12 + -2h = 0

Add '-12' to each side of the equation.
12 + -12 + -2h = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -2h = 0 + -12
-2h = 0 + -12

Combine like terms: 0 + -12 = -12
-2h = -12

Divide each side by '-2'.
h = 6

Simplifying
h = 6