0.45=0.9*y

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Solution for 0.45=0.9*y equation: 


Simplifying
0.45 = 0.9y

Solving
0.45 = 0.9y

Solving for variable 'y'.

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

Add '-0.9y' to each side of the equation.
0.45 + -0.9y = 0.9y + -0.9y

Combine like terms: 0.9y + -0.9y = 0.0
0.45 + -0.9y = 0.0

Add '-0.45' to each side of the equation.
0.45 + -0.45 + -0.9y = 0.0 + -0.45

Combine like terms: 0.45 + -0.45 = 0.00
0.00 + -0.9y = 0.0 + -0.45
-0.9y = 0.0 + -0.45

Combine like terms: 0.0 + -0.45 = -0.45
-0.9y = -0.45

Divide each side by '-0.9'.
y = 0.5

Simplifying
y = 0.5

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