9y+8=21

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Solution for 9y+8=21 equation: 


Simplifying
9y + 8 = 21

Reorder the terms:
8 + 9y = 21

Solving
8 + 9y = 21

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + 9y = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 9y = 21 + -8
9y = 21 + -8

Combine like terms: 21 + -8 = 13
9y = 13

Divide each side by '9'.
y = 1.444444444

Simplifying
y = 1.444444444

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