3*4.5+y=-8

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Solution for 3*4.5+y=-8 equation: 


Simplifying
3 * 4.5 + y = -8

Multiply 3 * 4.5
13.5 + y = -8

Solving
13.5 + y = -8

Solving for variable 'y'.

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

Add '-13.5' to each side of the equation.
13.5 + -13.5 + y = -8 + -13.5

Combine like terms: 13.5 + -13.5 = 0.0
0.0 + y = -8 + -13.5
y = -8 + -13.5

Combine like terms: -8 + -13.5 = -21.5
y = -21.5

Simplifying
y = -21.5

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