45=y-.10y

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Solution for 45=y-.10y equation:


Simplifying
45 = y + -0.10y

Combine like terms: y + -0.10y = 0.9y
45 = 0.9y

Solving
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.
45 + -0.9y = 0.9y + -0.9y

Combine like terms: 0.9y + -0.9y = 0.0
45 + -0.9y = 0.0

Add '-45' to each side of the equation.
45 + -45 + -0.9y = 0.0 + -45

Combine like terms: 45 + -45 = 0
0 + -0.9y = 0.0 + -45
-0.9y = 0.0 + -45

Combine like terms: 0.0 + -45 = -45
-0.9y = -45

Divide each side by '-0.9'.
y = 50

Simplifying
y = 50

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