X+50=4X-40

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Solution for X+50=4X-40 equation:


Simplifying
X + 50 = 4X + -40

Reorder the terms:
50 + X = 4X + -40

Reorder the terms:
50 + X = -40 + 4X

Solving
50 + X = -40 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
50 + X + -4X = -40 + 4X + -4X

Combine like terms: X + -4X = -3X
50 + -3X = -40 + 4X + -4X

Combine like terms: 4X + -4X = 0
50 + -3X = -40 + 0
50 + -3X = -40

Add '-50' to each side of the equation.
50 + -50 + -3X = -40 + -50

Combine like terms: 50 + -50 = 0
0 + -3X = -40 + -50
-3X = -40 + -50

Combine like terms: -40 + -50 = -90
-3X = -90

Divide each side by '-3'.
X = 30

Simplifying
X = 30

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