50=650+30(N-10)

Solution for 50=650+30(N-10) equation:

Simplifying
50 = 650 + 30(N + -10)

Reorder the terms:
50 = 650 + 30(-10 + N)
50 = 650 + (-10 * 30 + N * 30)
50 = 650 + (-300 + 30N)

Combine like terms: 650 + -300 = 350
50 = 350 + 30N

Solving
50 = 350 + 30N

Solving for variable 'N'.

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

Add '-30N' to each side of the equation.
50 + -30N = 350 + 30N + -30N

Combine like terms: 30N + -30N = 0
50 + -30N = 350 + 0
50 + -30N = 350

Add '-50' to each side of the equation.
50 + -50 + -30N = 350 + -50

Combine like terms: 50 + -50 = 0
0 + -30N = 350 + -50
-30N = 350 + -50

Combine like terms: 350 + -50 = 300
-30N = 300

Divide each side by '-30'.
N = -10

Simplifying
N = -10