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090-B6-1

1. Evaluate the following expressions. b. y 13 for y 18
a. x 5 for x 11

c. 7 x for x 4 d. 15 y for y 4

e. 2x 3y for x 4, y 3 f. 3x y for x 5, y 10

g. 2a 4b for a 7, b 2 h. 4d e for d 4, e 5

i. 5x 2y 7 for x 1, y 3 j. 3p 2q 5 for p 10, q 6

2. Write an equation for each situation. Let x unknown number.

a. A number times 3 is 24. b. 15 more than a number is 20.

c. 7 less than a number is 19. d. A number divided by 30 is 6.
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