9+2(y-6)=20

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Solution for 9+2(y-6)=20 equation:


Simplifying
9 + 2(y + -6) = 20

Reorder the terms:
9 + 2(-6 + y) = 20
9 + (-6 * 2 + y * 2) = 20
9 + (-12 + 2y) = 20

Combine like terms: 9 + -12 = -3
-3 + 2y = 20

Solving
-3 + 2y = 20

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 = 20 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = 20 + 3
2y = 20 + 3

Combine like terms: 20 + 3 = 23
2y = 23

Divide each side by '2'.
y = 11.5

Simplifying
y = 11.5

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