3(4-y)=9

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


Simplifying
3(4 + -1y) = 9
(4 * 3 + -1y * 3) = 9
(12 + -3y) = 9

Solving
12 + -3y = 9

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -3y = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -3y = 9 + -12
-3y = 9 + -12

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

Divide each side by '-3'.
y = 1

Simplifying
y = 1

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