x-5(x-20)=0

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Solution for x-5(x-20)=0 equation:


Simplifying
x + -5(x + -20) = 0

Reorder the terms:
x + -5(-20 + x) = 0
x + (-20 * -5 + x * -5) = 0
x + (100 + -5x) = 0

Reorder the terms:
100 + x + -5x = 0

Combine like terms: x + -5x = -4x
100 + -4x = 0

Solving
100 + -4x = 0

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -4x = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -4x = 0 + -100
-4x = 0 + -100

Combine like terms: 0 + -100 = -100
-4x = -100

Divide each side by '-4'.
x = 25

Simplifying
x = 25

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