X+Y-13=0

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Solution for X+Y-13=0 equation:


Simplifying
X + Y + -13 = 0

Reorder the terms:
-13 + X + Y = 0

Solving
-13 + X + Y = 0

Solving for variable 'X'.

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

Add '13' to each side of the equation.
-13 + X + 13 + Y = 0 + 13

Reorder the terms:
-13 + 13 + X + Y = 0 + 13

Combine like terms: -13 + 13 = 0
0 + X + Y = 0 + 13
X + Y = 0 + 13

Combine like terms: 0 + 13 = 13
X + Y = 13

Add '-1Y' to each side of the equation.
X + Y + -1Y = 13 + -1Y

Combine like terms: Y + -1Y = 0
X + 0 = 13 + -1Y
X = 13 + -1Y

Simplifying
X = 13 + -1Y

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