.5(3+9)+y=

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Solution for .5(3+9)+y= equation: 


Simplifying
0.5(3 + 9) + y = 0

Combine like terms: 3 + 9 = 12
0.5(12) + y = 0

Multiply 0.5 * 12
6 + y = 0

Solving
6 + y = 0

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + y = 0 + -6

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

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

Simplifying
y = -6

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