2y-13=21

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Solution for 2y-13=21 equation: 


Simplifying
2y + -13 = 21

Reorder the terms:
-13 + 2y = 21

Solving
-13 + 2y = 21

Solving for variable 'y'.

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

Add '13' to each side of the equation.
-13 + 13 + 2y = 21 + 13

Combine like terms: -13 + 13 = 0
0 + 2y = 21 + 13
2y = 21 + 13

Combine like terms: 21 + 13 = 34
2y = 34

Divide each side by '2'.
y = 17

Simplifying
y = 17

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