X+20=15-2X

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Solution for X+20=15-2X equation:


Simplifying
X + 20 = 15 + -2X

Reorder the terms:
20 + X = 15 + -2X

Solving
20 + X = 15 + -2X

Solving for variable 'X'.

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

Add '2X' to each side of the equation.
20 + X + 2X = 15 + -2X + 2X

Combine like terms: X + 2X = 3X
20 + 3X = 15 + -2X + 2X

Combine like terms: -2X + 2X = 0
20 + 3X = 15 + 0
20 + 3X = 15

Add '-20' to each side of the equation.
20 + -20 + 3X = 15 + -20

Combine like terms: 20 + -20 = 0
0 + 3X = 15 + -20
3X = 15 + -20

Combine like terms: 15 + -20 = -5
3X = -5

Divide each side by '3'.
X = -1.666666667

Simplifying
X = -1.666666667

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