7(y+3)=5y+9

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Solution for 7(y+3)=5y+9 equation:


Simplifying
7(y + 3) = 5y + 9

Reorder the terms:
7(3 + y) = 5y + 9
(3 * 7 + y * 7) = 5y + 9
(21 + 7y) = 5y + 9

Reorder the terms:
21 + 7y = 9 + 5y

Solving
21 + 7y = 9 + 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.
21 + 7y + -5y = 9 + 5y + -5y

Combine like terms: 7y + -5y = 2y
21 + 2y = 9 + 5y + -5y

Combine like terms: 5y + -5y = 0
21 + 2y = 9 + 0
21 + 2y = 9

Add '-21' to each side of the equation.
21 + -21 + 2y = 9 + -21

Combine like terms: 21 + -21 = 0
0 + 2y = 9 + -21
2y = 9 + -21

Combine like terms: 9 + -21 = -12
2y = -12

Divide each side by '2'.
y = -6

Simplifying
y = -6

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