5y+6-2y=21

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Solution for 5y+6-2y=21 equation:


Simplifying
5y + 6 + -2y = 21

Reorder the terms:
6 + 5y + -2y = 21

Combine like terms: 5y + -2y = 3y
6 + 3y = 21

Solving
6 + 3y = 21

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + 3y = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3y = 21 + -6
3y = 21 + -6

Combine like terms: 21 + -6 = 15
3y = 15

Divide each side by '3'.
y = 5

Simplifying
y = 5

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