y-280=.3y

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Solution for y-280=.3y equation:


Simplifying
y + -280 = 0.3y

Reorder the terms:
-280 + y = 0.3y

Solving
-280 + y = 0.3y

Solving for variable 'y'.

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

Add '-0.3y' to each side of the equation.
-280 + y + -0.3y = 0.3y + -0.3y

Combine like terms: y + -0.3y = 0.7y
-280 + 0.7y = 0.3y + -0.3y

Combine like terms: 0.3y + -0.3y = 0.0
-280 + 0.7y = 0.0

Add '280' to each side of the equation.
-280 + 280 + 0.7y = 0.0 + 280

Combine like terms: -280 + 280 = 0
0 + 0.7y = 0.0 + 280
0.7y = 0.0 + 280

Combine like terms: 0.0 + 280 = 280
0.7y = 280

Divide each side by '0.7'.
y = 400

Simplifying
y = 400

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