3y-y+7x+8x=0

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Solution for 3y-y+7x+8x=0 equation:


Simplifying
3y + -1y + 7x + 8x = 0

Reorder the terms:
7x + 8x + 3y + -1y = 0

Combine like terms: 7x + 8x = 15x
15x + 3y + -1y = 0

Combine like terms: 3y + -1y = 2y
15x + 2y = 0

Solving
15x + 2y = 0

Solving for variable 'x'.

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

Add '-2y' to each side of the equation.
15x + 2y + -2y = 0 + -2y

Combine like terms: 2y + -2y = 0
15x + 0 = 0 + -2y
15x = 0 + -2y
Remove the zero:
15x = -2y

Divide each side by '15'.
x = -0.1333333333y

Simplifying
x = -0.1333333333y

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