(5x+7y)+(3x-9y)=

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Solution for (5x+7y)+(3x-9y)= equation:


Simplifying
(5x + 7y) + (3x + -9y) = 0

Remove parenthesis around (5x + 7y)
5x + 7y + (3x + -9y) = 0

Remove parenthesis around (3x + -9y)
5x + 7y + 3x + -9y = 0

Reorder the terms:
5x + 3x + 7y + -9y = 0

Combine like terms: 5x + 3x = 8x
8x + 7y + -9y = 0

Combine like terms: 7y + -9y = -2y
8x + -2y = 0

Solving
8x + -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.
8x + -2y + 2y = 0 + 2y

Combine like terms: -2y + 2y = 0
8x + 0 = 0 + 2y
8x = 0 + 2y
Remove the zero:
8x = 2y

Divide each side by '8'.
x = 0.25y

Simplifying
x = 0.25y

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