7x-9y+5y-7x=40

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Solution for 7x-9y+5y-7x=40 equation: 


Simplifying
7x + -9y + 5y + -7x = 40

Reorder the terms:
7x + -7x + -9y + 5y = 40

Combine like terms: 7x + -7x = 0
0 + -9y + 5y = 40
-9y + 5y = 40

Combine like terms: -9y + 5y = -4y
-4y = 40

Solving
-4y = 40

Solving for variable 'y'.

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

Divide each side by '-4'.
y = -10

Simplifying
y = -10

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