x+3y=13-x

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Solution for x+3y=13-x equation:


Simplifying
x + 3y = 13 + -1x

Solving
x + 3y = 13 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
x + x + 3y = 13 + -1x + x

Combine like terms: x + x = 2x
2x + 3y = 13 + -1x + x

Combine like terms: -1x + x = 0
2x + 3y = 13 + 0
2x + 3y = 13

Add '-3y' to each side of the equation.
2x + 3y + -3y = 13 + -3y

Combine like terms: 3y + -3y = 0
2x + 0 = 13 + -3y
2x = 13 + -3y

Divide each side by '2'.
x = 6.5 + -1.5y

Simplifying
x = 6.5 + -1.5y

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