4x-y=7x+9

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Solution for 4x-y=7x+9 equation:


Simplifying
4x + -1y = 7x + 9

Reorder the terms:
4x + -1y = 9 + 7x

Solving
4x + -1y = 9 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
4x + -7x + -1y = 9 + 7x + -7x

Combine like terms: 4x + -7x = -3x
-3x + -1y = 9 + 7x + -7x

Combine like terms: 7x + -7x = 0
-3x + -1y = 9 + 0
-3x + -1y = 9

Add 'y' to each side of the equation.
-3x + -1y + y = 9 + y

Combine like terms: -1y + y = 0
-3x + 0 = 9 + y
-3x = 9 + y

Divide each side by '-3'.
x = -3 + -0.3333333333y

Simplifying
x = -3 + -0.3333333333y

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