What is the value of z in the equation 4×2-z=7?

Find the difference (8ab+a+2) - (3ab+6)

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10