3y(2y+5)-9=2y(3y+1)+7

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Solution for 3y(2y+5)-9=2y(3y+1)+7 equation:


Simplifying
3y(2y + 5) + -9 = 2y(3y + 1) + 7

Reorder the terms:
3y(5 + 2y) + -9 = 2y(3y + 1) + 7
(5 * 3y + 2y * 3y) + -9 = 2y(3y + 1) + 7
(15y + 6y2) + -9 = 2y(3y + 1) + 7

Reorder the terms:
-9 + 15y + 6y2 = 2y(3y + 1) + 7

Reorder the terms:
-9 + 15y + 6y2 = 2y(1 + 3y) + 7
-9 + 15y + 6y2 = (1 * 2y + 3y * 2y) + 7
-9 + 15y + 6y2 = (2y + 6y2) + 7

Reorder the terms:
-9 + 15y + 6y2 = 7 + 2y + 6y2

Add '-6y2' to each side of the equation.
-9 + 15y + 6y2 + -6y2 = 7 + 2y + 6y2 + -6y2

Combine like terms: 6y2 + -6y2 = 0
-9 + 15y + 0 = 7 + 2y + 6y2 + -6y2
-9 + 15y = 7 + 2y + 6y2 + -6y2

Combine like terms: 6y2 + -6y2 = 0
-9 + 15y = 7 + 2y + 0
-9 + 15y = 7 + 2y

Solving
-9 + 15y = 7 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-9 + 15y + -2y = 7 + 2y + -2y

Combine like terms: 15y + -2y = 13y
-9 + 13y = 7 + 2y + -2y

Combine like terms: 2y + -2y = 0
-9 + 13y = 7 + 0
-9 + 13y = 7

Add '9' to each side of the equation.
-9 + 9 + 13y = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 13y = 7 + 9
13y = 7 + 9

Combine like terms: 7 + 9 = 16
13y = 16

Divide each side by '13'.
y = 1.230769231

Simplifying
y = 1.230769231

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