12.9+2.3y=4.5y+19.5

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Solution for 12.9+2.3y=4.5y+19.5 equation: 


Simplifying
12.9 + 2.3y = 4.5y + 19.5

Reorder the terms:
12.9 + 2.3y = 19.5 + 4.5y

Solving
12.9 + 2.3y = 19.5 + 4.5y

Solving for variable 'y'.

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

Add '-4.5y' to each side of the equation.
12.9 + 2.3y + -4.5y = 19.5 + 4.5y + -4.5y

Combine like terms: 2.3y + -4.5y = -2.2y
12.9 + -2.2y = 19.5 + 4.5y + -4.5y

Combine like terms: 4.5y + -4.5y = 0.0
12.9 + -2.2y = 19.5 + 0.0
12.9 + -2.2y = 19.5

Add '-12.9' to each side of the equation.
12.9 + -12.9 + -2.2y = 19.5 + -12.9

Combine like terms: 12.9 + -12.9 = 0.0
0.0 + -2.2y = 19.5 + -12.9
-2.2y = 19.5 + -12.9

Combine like terms: 19.5 + -12.9 = 6.6
-2.2y = 6.6

Divide each side by '-2.2'.
y = -3

Simplifying
y = -3

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