9y-1=4y+4

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Solution for 9y-1=4y+4 equation:


Simplifying
9y + -1 = 4y + 4

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

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

Solving
-1 + 9y = 4 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-1 + 9y + -4y = 4 + 4y + -4y

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

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

Add '1' to each side of the equation.
-1 + 1 + 5y = 4 + 1

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

Combine like terms: 4 + 1 = 5
5y = 5

Divide each side by '5'.
y = 1

Simplifying
y = 1

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