42=3(2-3H)

Solution for 42=3(2-3H) equation:

Simplifying
42 = 3(2 + -3H)
42 = (2 * 3 + -3H * 3)
42 = (6 + -9H)

Solving
42 = 6 + -9H

Solving for variable 'H'.

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

Add '9H' to each side of the equation.
42 + 9H = 6 + -9H + 9H

Combine like terms: -9H + 9H = 0
42 + 9H = 6 + 0
42 + 9H = 6

Add '-42' to each side of the equation.
42 + -42 + 9H = 6 + -42

Combine like terms: 42 + -42 = 0
0 + 9H = 6 + -42
9H = 6 + -42

Combine like terms: 6 + -42 = -36
9H = -36

Divide each side by '9'.
H = -4

Simplifying
H = -4