2(3y+1)+5=77+7(y-9)

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Solution for 2(3y+1)+5=77+7(y-9) equation:


Simplifying
2(3y + 1) + 5 = 77 + 7(y + -9)

Reorder the terms:
2(1 + 3y) + 5 = 77 + 7(y + -9)
(1 * 2 + 3y * 2) + 5 = 77 + 7(y + -9)
(2 + 6y) + 5 = 77 + 7(y + -9)

Reorder the terms:
2 + 5 + 6y = 77 + 7(y + -9)

Combine like terms: 2 + 5 = 7
7 + 6y = 77 + 7(y + -9)

Reorder the terms:
7 + 6y = 77 + 7(-9 + y)
7 + 6y = 77 + (-9 * 7 + y * 7)
7 + 6y = 77 + (-63 + 7y)

Combine like terms: 77 + -63 = 14
7 + 6y = 14 + 7y

Solving
7 + 6y = 14 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
7 + 6y + -7y = 14 + 7y + -7y

Combine like terms: 6y + -7y = -1y
7 + -1y = 14 + 7y + -7y

Combine like terms: 7y + -7y = 0
7 + -1y = 14 + 0
7 + -1y = 14

Add '-7' to each side of the equation.
7 + -7 + -1y = 14 + -7

Combine like terms: 7 + -7 = 0
0 + -1y = 14 + -7
-1y = 14 + -7

Combine like terms: 14 + -7 = 7
-1y = 7

Divide each side by '-1'.
y = -7

Simplifying
y = -7

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