4.5y=0.4(0.9+45y)+1.8

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Solution for 4.5y=0.4(0.9+45y)+1.8 equation: 


Simplifying
4.5y = 0.4(0.9 + 45y) + 1.8
4.5y = (0.9 * 0.4 + 45y * 0.4) + 1.8
4.5y = (0.36 + 18y) + 1.8

Reorder the terms:
4.5y = 0.36 + 1.8 + 18y

Combine like terms: 0.36 + 1.8 = 2.16
4.5y = 2.16 + 18y

Solving
4.5y = 2.16 + 18y

Solving for variable 'y'.

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

Add '-18y' to each side of the equation.
4.5y + -18y = 2.16 + 18y + -18y

Combine like terms: 4.5y + -18y = -13.5y
-13.5y = 2.16 + 18y + -18y

Combine like terms: 18y + -18y = 0
-13.5y = 2.16 + 0
-13.5y = 2.16

Divide each side by '-13.5'.
y = -0.16

Simplifying
y = -0.16

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