420x=120(4x-20)

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Solution for 420x=120(4x-20) equation:


Simplifying
420x = 120(4x + -20)

Reorder the terms:
420x = 120(-20 + 4x)
420x = (-20 * 120 + 4x * 120)
420x = (-2400 + 480x)

Solving
420x = -2400 + 480x

Solving for variable 'x'.

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

Add '-480x' to each side of the equation.
420x + -480x = -2400 + 480x + -480x

Combine like terms: 420x + -480x = -60x
-60x = -2400 + 480x + -480x

Combine like terms: 480x + -480x = 0
-60x = -2400 + 0
-60x = -2400

Divide each side by '-60'.
x = 40

Simplifying
x = 40

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