21+3y-2=13y-11-4y

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Solution for 21+3y-2=13y-11-4y equation:


Simplifying
21 + 3y + -2 = 13y + -11 + -4y

Reorder the terms:
21 + -2 + 3y = 13y + -11 + -4y

Combine like terms: 21 + -2 = 19
19 + 3y = 13y + -11 + -4y

Reorder the terms:
19 + 3y = -11 + 13y + -4y

Combine like terms: 13y + -4y = 9y
19 + 3y = -11 + 9y

Solving
19 + 3y = -11 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
19 + 3y + -9y = -11 + 9y + -9y

Combine like terms: 3y + -9y = -6y
19 + -6y = -11 + 9y + -9y

Combine like terms: 9y + -9y = 0
19 + -6y = -11 + 0
19 + -6y = -11

Add '-19' to each side of the equation.
19 + -19 + -6y = -11 + -19

Combine like terms: 19 + -19 = 0
0 + -6y = -11 + -19
-6y = -11 + -19

Combine like terms: -11 + -19 = -30
-6y = -30

Divide each side by '-6'.
y = 5

Simplifying
y = 5

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