# EVALUATE FOR THE GIVEN VALUE OF THE VARIABLE WORKSHEET

Evaluate the following expressions when

x = 8, y = 9 and z = 10

Problem 1 :

2-x - √y

Problem 2 :

z² + (xy/y) - 5

Problem 3 :

-5|x - z| + 1/2 z

Problem 4 :

What is -4 - 2x + 7 when x = -5?

a. -7          b. 1         c. 13          d. 21

Problem 5 :

What is 4a - c√b + 6 when a = 27, b = 64 and c = -2?

a. 2            b. 22            c. 26           d. 34

Problem 6 :

What is

|-5x + 6y| + √z / 5x - 22

when x = 2, y = -13 and z = 81

Solution

 1)  -72)  433)  -5 4)  135)  346)  32.3

Evaluate the algebraic expression for the given values.

1)  7x + 8 when x = 2            Solution

2)  5x − 4 when x = 6              Solution

3)  x2 when x = 12      Solution

4)  4x when x = 2          Solution

5)  x2 + 3x - 7 when x = 4            Solution

6)  (x - y)when x = 10 and y = 7           Solution

7)  a+ bwhen a = 3 and b = 8          Solution

8)  r- swhen r = 12 and s = 5      Solution

9)  2L + 2W when L = 15 and W = 12      Solution

10)  2x + 4y - 5 when x = 7 and y = 8      Solution

 1)  222)  263)  1444) 165)  3 6)  97)  738)  1199)  5410)  41

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