y-0.2y=2.1

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Solution for y-0.2y=2.1 equation: 


Simplifying
y + -0.2y = 2.1

Combine like terms: y + -0.2y = 0.8y
0.8y = 2.1

Solving
0.8y = 2.1

Solving for variable 'y'.

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

Divide each side by '0.8'.
y = 2.625

Simplifying
y = 2.625

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