0.8y-4.2=9.4

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Solution for 0.8y-4.2=9.4 equation: 


Simplifying
0.8y + -4.2 = 9.4

Reorder the terms:
-4.2 + 0.8y = 9.4

Solving
-4.2 + 0.8y = 9.4

Solving for variable 'y'.

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

Add '4.2' to each side of the equation.
-4.2 + 4.2 + 0.8y = 9.4 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 0.8y = 9.4 + 4.2
0.8y = 9.4 + 4.2

Combine like terms: 9.4 + 4.2 = 13.6
0.8y = 13.6

Divide each side by '0.8'.
y = 17

Simplifying
y = 17

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