4x+5(100-x)=480

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Solution for 4x+5(100-x)=480 equation:


Simplifying
4x + 5(100 + -1x) = 480
4x + (100 * 5 + -1x * 5) = 480
4x + (500 + -5x) = 480

Reorder the terms:
500 + 4x + -5x = 480

Combine like terms: 4x + -5x = -1x
500 + -1x = 480

Solving
500 + -1x = 480

Solving for variable 'x'.

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

Add '-500' to each side of the equation.
500 + -500 + -1x = 480 + -500

Combine like terms: 500 + -500 = 0
0 + -1x = 480 + -500
-1x = 480 + -500

Combine like terms: 480 + -500 = -20
-1x = -20

Divide each side by '-1'.
x = 20

Simplifying
x = 20

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