.20(120)+.50(x)=.40(x+120)

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Solution for .20(120)+.50(x)=.40(x+120) equation:


Simplifying
0.20(120) + 0.50(x) = 0.40(x + 120)

Multiply 0.20 * 120
24 + 0.50(x) = 0.40(x + 120)

Reorder the terms:
24 + 0.50x = 0.40(120 + x)
24 + 0.50x = (120 * 0.40 + x * 0.40)
24 + 0.50x = (48 + 0.40x)

Solving
24 + 0.50x = 48 + 0.40x

Solving for variable 'x'.

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

Add '-0.40x' to each side of the equation.
24 + 0.50x + -0.40x = 48 + 0.40x + -0.40x

Combine like terms: 0.50x + -0.40x = 0.1x
24 + 0.1x = 48 + 0.40x + -0.40x

Combine like terms: 0.40x + -0.40x = 0.00
24 + 0.1x = 48 + 0.00
24 + 0.1x = 48

Add '-24' to each side of the equation.
24 + -24 + 0.1x = 48 + -24

Combine like terms: 24 + -24 = 0
0 + 0.1x = 48 + -24
0.1x = 48 + -24

Combine like terms: 48 + -24 = 24
0.1x = 24

Divide each side by '0.1'.
x = 240

Simplifying
x = 240

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