Evaluate and simplify the following expressions. 1. 2 (x + 6) - 4 + x 2. (x + 4) • 9 3. y + 7 + 8 - 7 (x - 8) 4. (4 - 5) + x (6 - 8) 5. y (4-8) - 3y 6. y (4-8) - 3y 7. x + 8y - 16x (1 - 3)

Question

Beatrice

Mathematics

3 March, 22:01

Evaluate and simplify the following expressions. 1. 2 (x + 6) - 4 + x 2. (x + 4) • 9 3. y + 7 + 8 - 7 (x - 8) 4. (4 - 5) + x (6 - 8) 5. y (4-8) - 3y 6. y (4-8) - 3y 7. x + 8y - 16x (1 - 3)

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Elaine Campos · Answer 1

Question 1:

2 (x + 6) - 4 + x = 2x + 12 - 4 + x = 3x + 8

Question 2:

(x + 4) * 9 = 9x + 36

Question 3:

y + 7 + 8 - 7 (x - 8) = y + 15 - 7x + 56 = y - 7x + 71

Question 4:

(4 - 5) + x (6 - 8) = - 1 - 2x

Question 5:

y (4 - 8) - 3y = - 4y - 3y = - 7y

Question 6:

y (4 - 8) - 3y = - 4y - 3y = - 7y

Question 7:

x + 8y - 16x (1 - 3) = x + 8y - 16x + 48 = 8y - 15x + 48