120+.40x=40+.90x

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Solution for 120+.40x=40+.90x equation:


Simplifying
120 + 0.40x = 40 + 0.90x

Solving
120 + 0.40x = 40 + 0.90x

Solving for variable 'x'.

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

Add '-0.90x' to each side of the equation.
120 + 0.40x + -0.90x = 40 + 0.90x + -0.90x

Combine like terms: 0.40x + -0.90x = -0.5x
120 + -0.5x = 40 + 0.90x + -0.90x

Combine like terms: 0.90x + -0.90x = 0.00
120 + -0.5x = 40 + 0.00
120 + -0.5x = 40

Add '-120' to each side of the equation.
120 + -120 + -0.5x = 40 + -120

Combine like terms: 120 + -120 = 0
0 + -0.5x = 40 + -120
-0.5x = 40 + -120

Combine like terms: 40 + -120 = -80
-0.5x = -80

Divide each side by '-0.5'.
x = 160

Simplifying
x = 160

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