0.84=0.4y

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Solution for 0.84=0.4y equation: 


Simplifying
0.84 = 0.4y

Solving
0.84 = 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.
0.84 + -0.4y = 0.4y + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
0.84 + -0.4y = 0.0

Add '-0.84' to each side of the equation.
0.84 + -0.84 + -0.4y = 0.0 + -0.84

Combine like terms: 0.84 + -0.84 = 0.00
0.00 + -0.4y = 0.0 + -0.84
-0.4y = 0.0 + -0.84

Combine like terms: 0.0 + -0.84 = -0.84
-0.4y = -0.84

Divide each side by '-0.4'.
y = 2.1

Simplifying
y = 2.1

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