10-11+2y=21-2y

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Solution for 10-11+2y=21-2y equation:


Simplifying
10 + -11 + 2y = 21 + -2y

Combine like terms: 10 + -11 = -1
-1 + 2y = 21 + -2y

Solving
-1 + 2y = 21 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-1 + 2y + 2y = 21 + -2y + 2y

Combine like terms: 2y + 2y = 4y
-1 + 4y = 21 + -2y + 2y

Combine like terms: -2y + 2y = 0
-1 + 4y = 21 + 0
-1 + 4y = 21

Add '1' to each side of the equation.
-1 + 1 + 4y = 21 + 1

Combine like terms: -1 + 1 = 0
0 + 4y = 21 + 1
4y = 21 + 1

Combine like terms: 21 + 1 = 22
4y = 22

Divide each side by '4'.
y = 5.5

Simplifying
y = 5.5

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