3(2y+5)+y=7

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


Simplifying
3(2y + 5) + y = 7

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

Combine like terms: 6y + y = 7y
15 + 7y = 7

Solving
15 + 7y = 7

Solving for variable 'y'.

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

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

Combine like terms: 15 + -15 = 0
0 + 7y = 7 + -15
7y = 7 + -15

Combine like terms: 7 + -15 = -8
7y = -8

Divide each side by '7'.
y = -1.142857143

Simplifying
y = -1.142857143

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