Name _________________________ Date _________________________ Evaluating Expression by Substituting Replacement Values Instructions: Substitute the given replacement values for the variable and solve each problem. Be sure to apply the order of operations to each problem. Show all of your work on a separate sheet of paper. a = 3, b = 8, c = -4 1) a + b + c = 6) (a + b)2 = 2) 6a + 5c = 7) 7a + bc = 3) 2b + 9ac 8) (a + b + c)2 = 4) abc ÷ 12 = 9) (b + c)3 = 5) 3(b + c) = 10) (a - c) + b = Substitute and simplify. w = -2, x = 5, y = 8, z = -7 11) wx + yz = 16) 4(y + z) + 5(w + x) = 12) 3w + 3z – xy = 17) w2 – x2 = 13) y(z + x) = 18) (yz)2 – 2wx 14) (w + x + y)3 = 19) 3wz – 2xy = 15) (z – w)3 = 20) w + (x + y +z)2 =