300=20(x-65)+50

Solution for 300=20(x-65)+50 equation:

Simplifying
300 = 20(x + -65) + 50

Reorder the terms:
300 = 20(-65 + x) + 50
300 = (-65 * 20 + x * 20) + 50
300 = (-1300 + 20x) + 50

Reorder the terms:
300 = -1300 + 50 + 20x

Combine like terms: -1300 + 50 = -1250
300 = -1250 + 20x

Solving
300 = -1250 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
300 + -20x = -1250 + 20x + -20x

Combine like terms: 20x + -20x = 0
300 + -20x = -1250 + 0
300 + -20x = -1250

Add '-300' to each side of the equation.
300 + -300 + -20x = -1250 + -300

Combine like terms: 300 + -300 = 0
0 + -20x = -1250 + -300
-20x = -1250 + -300

Combine like terms: -1250 + -300 = -1550
-20x = -1550

Divide each side by '-20'.
x = 77.5

Simplifying
x = 77.5