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 = 18
-2y = 18

Divide each side by '-2'.
y = -9

Simplifying
y = -9

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