3x+4y=7x-9

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Solution for 3x+4y=7x-9 equation:


Simplifying
3x + 4y = 7x + -9

Reorder the terms:
3x + 4y = -9 + 7x

Solving
3x + 4y = -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.
3x + -7x + 4y = -9 + 7x + -7x

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

Combine like terms: 7x + -7x = 0
-4x + 4y = -9 + 0
-4x + 4y = -9

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

Combine like terms: 4y + -4y = 0
-4x + 0 = -9 + -4y
-4x = -9 + -4y

Divide each side by '-4'.
x = 2.25 + y

Simplifying
x = 2.25 + y

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