5y-3=9y+21

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Solution for 5y-3=9y+21 equation:


Simplifying
5y + -3 = 9y + 21

Reorder the terms:
-3 + 5y = 9y + 21

Reorder the terms:
-3 + 5y = 21 + 9y

Solving
-3 + 5y = 21 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
-3 + 5y + -9y = 21 + 9y + -9y

Combine like terms: 5y + -9y = -4y
-3 + -4y = 21 + 9y + -9y

Combine like terms: 9y + -9y = 0
-3 + -4y = 21 + 0
-3 + -4y = 21

Add '3' to each side of the equation.
-3 + 3 + -4y = 21 + 3

Combine like terms: -3 + 3 = 0
0 + -4y = 21 + 3
-4y = 21 + 3

Combine like terms: 21 + 3 = 24
-4y = 24

Divide each side by '-4'.
y = -6

Simplifying
y = -6

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