9(y-5)=5y-21

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Solution for 9(y-5)=5y-21 equation: 


Simplifying
9(y + -5) = 5y + -21

Reorder the terms:
9(-5 + y) = 5y + -21
(-5 * 9 + y * 9) = 5y + -21
(-45 + 9y) = 5y + -21

Reorder the terms:
-45 + 9y = -21 + 5y

Solving
-45 + 9y = -21 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
-45 + 9y + -5y = -21 + 5y + -5y

Combine like terms: 9y + -5y = 4y
-45 + 4y = -21 + 5y + -5y

Combine like terms: 5y + -5y = 0
-45 + 4y = -21 + 0
-45 + 4y = -21

Add '45' to each side of the equation.
-45 + 45 + 4y = -21 + 45

Combine like terms: -45 + 45 = 0
0 + 4y = -21 + 45
4y = -21 + 45

Combine like terms: -21 + 45 = 24
4y = 24

Divide each side by '4'.
y = 6

Simplifying
y = 6

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