150=y+42

Solution for 150=y+42 equation:

Simplifying
150 = y + 42

Reorder the terms:
150 = 42 + y

Solving
150 = 42 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
150 + -1y = 42 + y + -1y

Combine like terms: y + -1y = 0
150 + -1y = 42 + 0
150 + -1y = 42

Add '-150' to each side of the equation.
150 + -150 + -1y = 42 + -150

Combine like terms: 150 + -150 = 0
0 + -1y = 42 + -150
-1y = 42 + -150

Combine like terms: 42 + -150 = -108
-1y = -108

Divide each side by '-1'.
y = 108

Simplifying
y = 108