(7x+5y)+(-8x-9y)=

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Solution for (7x+5y)+(-8x-9y)= equation:


Simplifying
(7x + 5y) + (-8x + -9y) = 0

Remove parenthesis around (7x + 5y)
7x + 5y + (-8x + -9y) = 0

Remove parenthesis around (-8x + -9y)
7x + 5y + -8x + -9y = 0

Reorder the terms:
7x + -8x + 5y + -9y = 0

Combine like terms: 7x + -8x = -1x
-1x + 5y + -9y = 0

Combine like terms: 5y + -9y = -4y
-1x + -4y = 0

Solving
-1x + -4y = 0

Solving for variable 'x'.

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

Add '4y' to each side of the equation.
-1x + -4y + 4y = 0 + 4y

Combine like terms: -4y + 4y = 0
-1x + 0 = 0 + 4y
-1x = 0 + 4y
Remove the zero:
-1x = 4y

Divide each side by '-1'.
x = -4y

Simplifying
x = -4y

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