48-3y=21

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Solution for 48-3y=21 equation: 


Simplifying
48 + -3y = 21

Solving
48 + -3y = 21

Solving for variable 'y'.

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

Add '-48' to each side of the equation.
48 + -48 + -3y = 21 + -48

Combine like terms: 48 + -48 = 0
0 + -3y = 21 + -48
-3y = 21 + -48

Combine like terms: 21 + -48 = -27
-3y = -27

Divide each side by '-3'.
y = 9

Simplifying
y = 9

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