9y-4=9y-y

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Solution for 9y-4=9y-y equation:


Simplifying
9y + -4 = 9y + -1y

Reorder the terms:
-4 + 9y = 9y + -1y

Combine like terms: 9y + -1y = 8y
-4 + 9y = 8y

Solving
-4 + 9y = 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-4 + 9y + -8y = 8y + -8y

Combine like terms: 9y + -8y = 1y
-4 + 1y = 8y + -8y

Combine like terms: 8y + -8y = 0
-4 + 1y = 0

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

Combine like terms: -4 + 4 = 0
0 + 1y = 0 + 4
1y = 0 + 4

Combine like terms: 0 + 4 = 4
1y = 4

Divide each side by '1'.
y = 4

Simplifying
y = 4

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