y^2-5y+9=y^2-4y+4

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Solution for y^2-5y+9=y^2-4y+4 equation:


Simplifying
y2 + -5y + 9 = y2 + -4y + 4

Reorder the terms:
9 + -5y + y2 = y2 + -4y + 4

Reorder the terms:
9 + -5y + y2 = 4 + -4y + y2

Add '-1y2' to each side of the equation.
9 + -5y + y2 + -1y2 = 4 + -4y + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
9 + -5y + 0 = 4 + -4y + y2 + -1y2
9 + -5y = 4 + -4y + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
9 + -5y = 4 + -4y + 0
9 + -5y = 4 + -4y

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

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

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

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

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

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

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

Simplifying
y = 5

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