The regular price of an item at a store is p dollars. The item is on sale for 20% off the regular price. Write an expression you can use to find the sale price. Show all work.

P×0.8

Step-by-step explanation:

1-0.2=0.8

what the question so we can you out

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w