15-(3+y)=

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Solution for 15-(3+y)= equation:


Simplifying
15 + -1(3 + y) = 0
15 + (3 * -1 + y * -1) = 0
15 + (-3 + -1y) = 0

Combine like terms: 15 + -3 = 12
12 + -1y = 0

Solving
12 + -1y = 0

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 + -1y = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = 0 + -12
-1y = 0 + -12

Combine like terms: 0 + -12 = -12
-1y = -12

Divide each side by '-1'.
y = 12

Simplifying
y = 12

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