18=3+Y

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Solution for 18=3+Y equation:


Simplifying
18 = 3 + Y

Solving
18 = 3 + Y

Solving for variable 'Y'.

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

Add '-1Y' to each side of the equation.
18 + -1Y = 3 + Y + -1Y

Combine like terms: Y + -1Y = 0
18 + -1Y = 3 + 0
18 + -1Y = 3

Add '-18' to each side of the equation.
18 + -18 + -1Y = 3 + -18

Combine like terms: 18 + -18 = 0
0 + -1Y = 3 + -18
-1Y = 3 + -18

Combine like terms: 3 + -18 = -15
-1Y = -15

Divide each side by '-1'.
Y = 15

Simplifying
Y = 15

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