Solve for y
y=3
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20=4\left(2y-1\right)
Variable y cannot be equal to \frac{1}{2} since division by zero is not defined. Multiply both sides of the equation by 2y-1.
20=8y-4
Use the distributive property to multiply 4 by 2y-1.
8y-4=20
Swap sides so that all variable terms are on the left hand side.
8y=20+4
Add 4 to both sides.
8y=24
Add 20 and 4 to get 24.
y=\frac{24}{8}
Divide both sides by 8.
y=3
Divide 24 by 8 to get 3.
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