15+y-7.2=4.5

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Solution for 15+y-7.2=4.5 equation: 


Simplifying
15 + y + -7.2 = 4.5

Reorder the terms:
15 + -7.2 + y = 4.5

Combine like terms: 15 + -7.2 = 7.8
7.8 + y = 4.5

Solving
7.8 + y = 4.5

Solving for variable 'y'.

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

Add '-7.8' to each side of the equation.
7.8 + -7.8 + y = 4.5 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + y = 4.5 + -7.8
y = 4.5 + -7.8

Combine like terms: 4.5 + -7.8 = -3.3
y = -3.3

Simplifying
y = -3.3

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