X+-.3X+-.4x=120

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Solution for X+-.3X+-.4x=120 equation:


Simplifying
X + -0.3X + -0.4x = 120

Combine like terms: X + -0.3X = 0.7X
0.7X + -0.4x = 120

Solving
0.7X + -0.4x = 120

Solving for variable 'X'.

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

Add '0.4x' to each side of the equation.
0.7X + -0.4x + 0.4x = 120 + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
0.7X + 0.0 = 120 + 0.4x
0.7X = 120 + 0.4x

Divide each side by '0.7'.
X = 171.4285714 + 0.5714285714x

Simplifying
X = 171.4285714 + 0.5714285714x

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