7y-4.2=16.8

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Solution for 7y-4.2=16.8 equation: 


Simplifying
7y + -4.2 = 16.8

Reorder the terms:
-4.2 + 7y = 16.8

Solving
-4.2 + 7y = 16.8

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 + 7y = 16.8 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 7y = 16.8 + 4.2
7y = 16.8 + 4.2

Combine like terms: 16.8 + 4.2 = 21
7y = 21

Divide each side by '7'.
y = 3

Simplifying
y = 3

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