50+0.9*(y-30)=y

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Solution for 50+0.9*(y-30)=y equation:


Simplifying
50 + 0.9(y + -30) = y

Reorder the terms:
50 + 0.9(-30 + y) = y
50 + (-30 * 0.9 + y * 0.9) = y
50 + (-27 + 0.9y) = y

Combine like terms: 50 + -27 = 23
23 + 0.9y = y

Solving
23 + 0.9y = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
23 + 0.9y + -1y = y + -1y

Combine like terms: 0.9y + -1y = -0.1y
23 + -0.1y = y + -1y

Combine like terms: y + -1y = 0
23 + -0.1y = 0

Add '-23' to each side of the equation.
23 + -23 + -0.1y = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -0.1y = 0 + -23
-0.1y = 0 + -23

Combine like terms: 0 + -23 = -23
-0.1y = -23

Divide each side by '-0.1'.
y = 230

Simplifying
y = 230

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