15=7.5+2.5y

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Solution for 15=7.5+2.5y equation: 


Simplifying
15 = 7.5 + 2.5y

Solving
15 = 7.5 + 2.5y

Solving for variable 'y'.

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

Add '-2.5y' to each side of the equation.
15 + -2.5y = 7.5 + 2.5y + -2.5y

Combine like terms: 2.5y + -2.5y = 0.0
15 + -2.5y = 7.5 + 0.0
15 + -2.5y = 7.5

Add '-15' to each side of the equation.
15 + -15 + -2.5y = 7.5 + -15

Combine like terms: 15 + -15 = 0
0 + -2.5y = 7.5 + -15
-2.5y = 7.5 + -15

Combine like terms: 7.5 + -15 = -7.5
-2.5y = -7.5

Divide each side by '-2.5'.
y = 3

Simplifying
y = 3

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