4(3+y)=9

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


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

Solving
12 + 4y = 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 + 4y = 9 + -12

Combine like terms: 12 + -12 = 0
0 + 4y = 9 + -12
4y = 9 + -12

Combine like terms: 9 + -12 = -3
4y = -3

Divide each side by '4'.
y = -0.75

Simplifying
y = -0.75

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