Question

1.

Answer 1

Question 1:

b + 8 = 13

b = 13 - 8

b = 5

Hence, the answer is A.

Question 2:

3x – 2 = 3x + 5

3x - 3x -2 = 5

-2 ≠ 5

Hence, the answer is A.

Question 3:

5q – 10 = 75

5q = 75 + 10 

5q = 85

q = $\frac{85}{5}$

q = 17

Hence, the answer is A.

Question 4:

3(2t + 5) = 5t + 25

6t + 15 = 5t + 25

6t - 5t = 25 - 15

t = 10

Hence, the answer is C.

Question 5:

6x – 2x – 5 = –6 + 21

4x = 15 + 5

4x = 20

x = $\frac{20}{4}$

x = 5

Hence, the answer is D.

Question 6:

4x = 64

x = $\frac{64}{4}$

x = 16

Hence, Asher is wrong. You have to divide by 4 not subtract by 4.

Question 7:

5(2x - 8) + 15 = -15

10x - 40 + 15 = -15

10x - 25 = - 15

10x = -15 + 25

10x = 10

x = $\frac{10}{10}$

x = 1