15y+5y-9=20y-9

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Solution for 15y+5y-9=20y-9 equation:


Simplifying
15y + 5y + -9 = 20y + -9

Reorder the terms:
-9 + 15y + 5y = 20y + -9

Combine like terms: 15y + 5y = 20y
-9 + 20y = 20y + -9

Reorder the terms:
-9 + 20y = -9 + 20y

Add '9' to each side of the equation.
-9 + 9 + 20y = -9 + 9 + 20y

Combine like terms: -9 + 9 = 0
0 + 20y = -9 + 9 + 20y
20y = -9 + 9 + 20y

Combine like terms: -9 + 9 = 0
20y = 0 + 20y
20y = 20y

Add '-20y' to each side of the equation.
20y + -20y = 20y + -20y

Combine like terms: 20y + -20y = 0
0 = 20y + -20y

Combine like terms: 20y + -20y = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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