5y-4=4y-9

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Solution for 5y-4=4y-9 equation:


Simplifying
5y + -4 = 4y + -9

Reorder the terms:
-4 + 5y = 4y + -9

Reorder the terms:
-4 + 5y = -9 + 4y

Solving
-4 + 5y = -9 + 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.
-4 + 5y + -4y = -9 + 4y + -4y

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

Combine like terms: 4y + -4y = 0
-4 + 1y = -9 + 0
-4 + 1y = -9

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

Combine like terms: -4 + 4 = 0
0 + 1y = -9 + 4
1y = -9 + 4

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

Divide each side by '1'.
y = -5

Simplifying
y = -5

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