13-0.5(Y+4)=9

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Solution for 13-0.5(Y+4)=9 equation: 


Simplifying
13 + -0.5(Y + 4) = 9

Reorder the terms:
13 + -0.5(4 + Y) = 9
13 + (4 * -0.5 + Y * -0.5) = 9
13 + (-2 + -0.5Y) = 9

Combine like terms: 13 + -2 = 11
11 + -0.5Y = 9

Solving
11 + -0.5Y = 9

Solving for variable 'Y'.

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

Add '-11' to each side of the equation.
11 + -11 + -0.5Y = 9 + -11

Combine like terms: 11 + -11 = 0
0 + -0.5Y = 9 + -11
-0.5Y = 9 + -11

Combine like terms: 9 + -11 = -2
-0.5Y = -2

Divide each side by '-0.5'.
Y = 4

Simplifying
Y = 4

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