11-2(y+1)=21

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Solution for 11-2(y+1)=21 equation:


Simplifying
11 + -2(y + 1) = 21

Reorder the terms:
11 + -2(1 + y) = 21
11 + (1 * -2 + y * -2) = 21
11 + (-2 + -2y) = 21

Combine like terms: 11 + -2 = 9
9 + -2y = 21

Solving
9 + -2y = 21

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + -2y = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -2y = 21 + -9
-2y = 21 + -9

Combine like terms: 21 + -9 = 12
-2y = 12

Divide each side by '-2'.
y = -6

Simplifying
y = -6

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