3.5+y=15

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Solution for 3.5+y=15 equation: 


Simplifying
3.5 + y = 15

Solving
3.5 + y = 15

Solving for variable 'y'.

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

Add '-3.5' to each side of the equation.
3.5 + -3.5 + y = 15 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + y = 15 + -3.5
y = 15 + -3.5

Combine like terms: 15 + -3.5 = 11.5
y = 11.5

Simplifying
y = 11.5

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