Math 7 Expressions Study Guide

(18-ab) + 4b (if a = -2 and b -5)

• 12

• -12

• -9

• 9

17 less than a number (use x)

a number is increased by 4 (use x)

the product of a number and -9 (use y)

the difference between twice a number and 23 (use x)

11 less than the quotient of a number and 8 (use x)

the sum of two-thirds of a number and twenty (use x)

a football team's score after the kicker hits a 3-point field goal (use x)

x squared - 3xy (if x = 8 and y = -3)

-7w² + 2w (if w=-4)