0.8y-0.5=4.2

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Solution for 0.8y-0.5=4.2 equation: 


Simplifying
0.8y + -0.5 = 4.2

Reorder the terms:
-0.5 + 0.8y = 4.2

Solving
-0.5 + 0.8y = 4.2

Solving for variable 'y'.

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

Add '0.5' to each side of the equation.
-0.5 + 0.5 + 0.8y = 4.2 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 0.8y = 4.2 + 0.5
0.8y = 4.2 + 0.5

Combine like terms: 4.2 + 0.5 = 4.7
0.8y = 4.7

Divide each side by '0.8'.
y = 5.875

Simplifying
y = 5.875

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