y-18=3(y+12)

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Solution for y-18=3(y+12) equation:


Simplifying
y + -18 = 3(y + 12)

Reorder the terms:
-18 + y = 3(y + 12)

Reorder the terms:
-18 + y = 3(12 + y)
-18 + y = (12 * 3 + y * 3)
-18 + y = (36 + 3y)

Solving
-18 + y = 36 + 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.
-18 + y + -3y = 36 + 3y + -3y

Combine like terms: y + -3y = -2y
-18 + -2y = 36 + 3y + -3y

Combine like terms: 3y + -3y = 0
-18 + -2y = 36 + 0
-18 + -2y = 36

Add '18' to each side of the equation.
-18 + 18 + -2y = 36 + 18

Combine like terms: -18 + 18 = 0
0 + -2y = 36 + 18
-2y = 36 + 18

Combine like terms: 36 + 18 = 54
-2y = 54

Divide each side by '-2'.
y = -27

Simplifying
y = -27

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