5y-7=7y+9

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


Simplifying
5y + -7 = 7y + 9

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

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

Solving
-7 + 5y = 9 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-7 + 5y + -7y = 9 + 7y + -7y

Combine like terms: 5y + -7y = -2y
-7 + -2y = 9 + 7y + -7y

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

Add '7' to each side of the equation.
-7 + 7 + -2y = 9 + 7

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

Combine like terms: 9 + 7 = 16
-2y = 16

Divide each side by '-2'.
y = -8

Simplifying
y = -8

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