3(2y+3)+3(5y-2)=84

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Solution for 3(2y+3)+3(5y-2)=84 equation:


Simplifying
3(2y + 3) + 3(5y + -2) = 84

Reorder the terms:
3(3 + 2y) + 3(5y + -2) = 84
(3 * 3 + 2y * 3) + 3(5y + -2) = 84
(9 + 6y) + 3(5y + -2) = 84

Reorder the terms:
9 + 6y + 3(-2 + 5y) = 84
9 + 6y + (-2 * 3 + 5y * 3) = 84
9 + 6y + (-6 + 15y) = 84

Reorder the terms:
9 + -6 + 6y + 15y = 84

Combine like terms: 9 + -6 = 3
3 + 6y + 15y = 84

Combine like terms: 6y + 15y = 21y
3 + 21y = 84

Solving
3 + 21y = 84

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + 21y = 84 + -3

Combine like terms: 3 + -3 = 0
0 + 21y = 84 + -3
21y = 84 + -3

Combine like terms: 84 + -3 = 81
21y = 81

Divide each side by '21'.
y = 3.857142857

Simplifying
y = 3.857142857

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