75-x+5(2x-10)-4x=125

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Solution for 75-x+5(2x-10)-4x=125 equation:


Simplifying
75 + -1x + 5(2x + -10) + -4x = 125

Reorder the terms:
75 + -1x + 5(-10 + 2x) + -4x = 125
75 + -1x + (-10 * 5 + 2x * 5) + -4x = 125
75 + -1x + (-50 + 10x) + -4x = 125

Reorder the terms:
75 + -50 + -1x + 10x + -4x = 125

Combine like terms: 75 + -50 = 25
25 + -1x + 10x + -4x = 125

Combine like terms: -1x + 10x = 9x
25 + 9x + -4x = 125

Combine like terms: 9x + -4x = 5x
25 + 5x = 125

Solving
25 + 5x = 125

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + 5x = 125 + -25

Combine like terms: 25 + -25 = 0
0 + 5x = 125 + -25
5x = 125 + -25

Combine like terms: 125 + -25 = 100
5x = 100

Divide each side by '5'.
x = 20

Simplifying
x = 20

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