3y-(y+11)+8=9

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Solution for 3y-(y+11)+8=9 equation:


Simplifying
3y + -1(y + 11) + 8 = 9

Reorder the terms:
3y + -1(11 + y) + 8 = 9
3y + (11 * -1 + y * -1) + 8 = 9
3y + (-11 + -1y) + 8 = 9

Reorder the terms:
-11 + 8 + 3y + -1y = 9

Combine like terms: -11 + 8 = -3
-3 + 3y + -1y = 9

Combine like terms: 3y + -1y = 2y
-3 + 2y = 9

Solving
-3 + 2y = 9

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 + 2y = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = 9 + 3
2y = 9 + 3

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

Divide each side by '2'.
y = 6

Simplifying
y = 6

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