9y-18=3(y-4)

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Solution for 9y-18=3(y-4) equation:


Simplifying
9y + -18 = 3(y + -4)

Reorder the terms:
-18 + 9y = 3(y + -4)

Reorder the terms:
-18 + 9y = 3(-4 + y)
-18 + 9y = (-4 * 3 + y * 3)
-18 + 9y = (-12 + 3y)

Solving
-18 + 9y = -12 + 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 + 9y + -3y = -12 + 3y + -3y

Combine like terms: 9y + -3y = 6y
-18 + 6y = -12 + 3y + -3y

Combine like terms: 3y + -3y = 0
-18 + 6y = -12 + 0
-18 + 6y = -12

Add '18' to each side of the equation.
-18 + 18 + 6y = -12 + 18

Combine like terms: -18 + 18 = 0
0 + 6y = -12 + 18
6y = -12 + 18

Combine like terms: -12 + 18 = 6
6y = 6

Divide each side by '6'.
y = 1

Simplifying
y = 1

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