12-y=2(9-2y)

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Solution for 12-y=2(9-2y) equation:


Simplifying
12 + -1y = 2(9 + -2y)
12 + -1y = (9 * 2 + -2y * 2)
12 + -1y = (18 + -4y)

Solving
12 + -1y = 18 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
12 + -1y + 4y = 18 + -4y + 4y

Combine like terms: -1y + 4y = 3y
12 + 3y = 18 + -4y + 4y

Combine like terms: -4y + 4y = 0
12 + 3y = 18 + 0
12 + 3y = 18

Add '-12' to each side of the equation.
12 + -12 + 3y = 18 + -12

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

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

Divide each side by '3'.
y = 2

Simplifying
y = 2

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