15x+4y=8x-5y

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Solution for 15x+4y=8x-5y equation:


Simplifying
15x + 4y = 8x + -5y

Solving
15x + 4y = 8x + -5y

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
15x + -8x + 4y = 8x + -8x + -5y

Combine like terms: 15x + -8x = 7x
7x + 4y = 8x + -8x + -5y

Combine like terms: 8x + -8x = 0
7x + 4y = 0 + -5y
7x + 4y = -5y

Add '-4y' to each side of the equation.
7x + 4y + -4y = -5y + -4y

Combine like terms: 4y + -4y = 0
7x + 0 = -5y + -4y
7x = -5y + -4y

Combine like terms: -5y + -4y = -9y
7x = -9y

Divide each side by '7'.
x = -1.285714286y

Simplifying
x = -1.285714286y

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