40=.4y

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Solution for 40=.4y equation:


Simplifying
40 = 0.4y

Solving
40 = 0.4y

Solving for variable 'y'.

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

Add '-0.4y' to each side of the equation.
40 + -0.4y = 0.4y + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
40 + -0.4y = 0.0

Add '-40' to each side of the equation.
40 + -40 + -0.4y = 0.0 + -40

Combine like terms: 40 + -40 = 0
0 + -0.4y = 0.0 + -40
-0.4y = 0.0 + -40

Combine like terms: 0.0 + -40 = -40
-0.4y = -40

Divide each side by '-0.4'.
y = 100

Simplifying
y = 100

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