0.07y+0.08(y-100)=20.5

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Solution for 0.07y+0.08(y-100)=20.5 equation: 


Simplifying
0.07y + 0.08(y + -100) = 20.5

Reorder the terms:
0.07y + 0.08(-100 + y) = 20.5
0.07y + (-100 * 0.08 + y * 0.08) = 20.5
0.07y + (-8 + 0.08y) = 20.5

Reorder the terms:
-8 + 0.07y + 0.08y = 20.5

Combine like terms: 0.07y + 0.08y = 0.15y
-8 + 0.15y = 20.5

Solving
-8 + 0.15y = 20.5

Solving for variable 'y'.

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

Add '8' to each side of the equation.
-8 + 8 + 0.15y = 20.5 + 8

Combine like terms: -8 + 8 = 0
0 + 0.15y = 20.5 + 8
0.15y = 20.5 + 8

Combine like terms: 20.5 + 8 = 28.5
0.15y = 28.5

Divide each side by '0.15'.
y = 190

Simplifying
y = 190

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