3x+y=13-4x

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Solution for 3x+y=13-4x equation:


Simplifying
3x + y = 13 + -4x

Solving
3x + y = 13 + -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.
3x + 4x + y = 13 + -4x + 4x

Combine like terms: 3x + 4x = 7x
7x + y = 13 + -4x + 4x

Combine like terms: -4x + 4x = 0
7x + y = 13 + 0
7x + y = 13

Add '-1y' to each side of the equation.
7x + y + -1y = 13 + -1y

Combine like terms: y + -1y = 0
7x + 0 = 13 + -1y
7x = 13 + -1y

Divide each side by '7'.
x = 1.857142857 + -0.1428571429y

Simplifying
x = 1.857142857 + -0.1428571429y

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