84=3(y+9)

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Solution for 84=3(y+9) equation:


Simplifying
84 = 3(y + 9)

Reorder the terms:
84 = 3(9 + y)
84 = (9 * 3 + y * 3)
84 = (27 + 3y)

Solving
84 = 27 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
84 + -3y = 27 + 3y + -3y

Combine like terms: 3y + -3y = 0
84 + -3y = 27 + 0
84 + -3y = 27

Add '-84' to each side of the equation.
84 + -84 + -3y = 27 + -84

Combine like terms: 84 + -84 = 0
0 + -3y = 27 + -84
-3y = 27 + -84

Combine like terms: 27 + -84 = -57
-3y = -57

Divide each side by '-3'.
y = 19

Simplifying
y = 19

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