Apply the distributive property.
Multiply 20 by 4.
Multiply 0.25 by 20.
Move all terms containing n to the left side of the equation.
Subtract 5n from both sides of the equation.
Subtract 5n from 5n.
Multiply 0 by n.
Since 0≠80, there are no solutions.
Solve for n 5n=20(4+0.25n)