y-(y+9)=12-(3y-2)

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Solution for y-(y+9)=12-(3y-2) equation:


Simplifying
y + -1(y + 9) = 12 + -1(3y + -2)

Reorder the terms:
y + -1(9 + y) = 12 + -1(3y + -2)
y + (9 * -1 + y * -1) = 12 + -1(3y + -2)
y + (-9 + -1y) = 12 + -1(3y + -2)

Reorder the terms:
-9 + y + -1y = 12 + -1(3y + -2)

Combine like terms: y + -1y = 0
-9 + 0 = 12 + -1(3y + -2)
-9 = 12 + -1(3y + -2)

Reorder the terms:
-9 = 12 + -1(-2 + 3y)
-9 = 12 + (-2 * -1 + 3y * -1)
-9 = 12 + (2 + -3y)

Combine like terms: 12 + 2 = 14
-9 = 14 + -3y

Solving
-9 = 14 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
-9 + 3y = 14 + -3y + 3y

Combine like terms: -3y + 3y = 0
-9 + 3y = 14 + 0
-9 + 3y = 14

Add '9' to each side of the equation.
-9 + 9 + 3y = 14 + 9

Combine like terms: -9 + 9 = 0
0 + 3y = 14 + 9
3y = 14 + 9

Combine like terms: 14 + 9 = 23
3y = 23

Divide each side by '3'.
y = 7.666666667

Simplifying
y = 7.666666667

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