X+Y+X-Y+8+20=

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Solution for X+Y+X-Y+8+20= equation: 


Simplifying
X + Y + X + -1Y + 8 + 20 = 0

Reorder the terms:
8 + 20 + X + X + Y + -1Y = 0

Combine like terms: 8 + 20 = 28
28 + X + X + Y + -1Y = 0

Combine like terms: X + X = 2X
28 + 2X + Y + -1Y = 0

Combine like terms: Y + -1Y = 0
28 + 2X + 0 = 0
28 + 2X = 0

Solving
28 + 2X = 0

Solving for variable 'X'.

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

Add '-28' to each side of the equation.
28 + -28 + 2X = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 2X = 0 + -28
2X = 0 + -28

Combine like terms: 0 + -28 = -28
2X = -28

Divide each side by '2'.
X = -14

Simplifying
X = -14

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