0.9y-0.3=4.2

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Solution for 0.9y-0.3=4.2 equation: 


Simplifying
0.9y + -0.3 = 4.2

Reorder the terms:
-0.3 + 0.9y = 4.2

Solving
-0.3 + 0.9y = 4.2

Solving for variable 'y'.

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

Add '0.3' to each side of the equation.
-0.3 + 0.3 + 0.9y = 4.2 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + 0.9y = 4.2 + 0.3
0.9y = 4.2 + 0.3

Combine like terms: 4.2 + 0.3 = 4.5
0.9y = 4.5

Divide each side by '0.9'.
y = 5

Simplifying
y = 5

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