150=7n-2n

Solution for 150=7n-2n equation:

Simplifying
150 = 7n + -2n

Combine like terms: 7n + -2n = 5n
150 = 5n

Solving
150 = 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
150 + -5n = 5n + -5n

Combine like terms: 5n + -5n = 0
150 + -5n = 0

Add '-150' to each side of the equation.
150 + -150 + -5n = 0 + -150

Combine like terms: 150 + -150 = 0
0 + -5n = 0 + -150
-5n = 0 + -150

Combine like terms: 0 + -150 = -150
-5n = -150

Divide each side by '-5'.
n = 30

Simplifying
n = 30