Solve for y
y=5
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y\times 4-5=15
Variable y cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by y.
y\times 4=15+5
Add 5 to both sides.
y\times 4=20
Add 15 and 5 to get 20.
y=\frac{20}{4}
Divide both sides by 4.
y=5
Divide 20 by 4 to get 5.
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