Question

1- When 5 times the number x is added to 10, the result is 35. What is the result when 3 times x is added to

6?
A. 10
B. 15
C. 21
D. 25

Answer 1

C. 21

Explanation:

5 times of x is 5x.

5x + 10 = 35

Remove 10 from both sides to get one side x, and the other side a number.

5x + 10 - 10 = 35 - 10

5x = 25

Both sides of the equation can be divided by 5.

x = 5

3 times of x is 3x.

3x + 6

Substitute in x = 5 from the earlier working.

3(5) + 6

= 15 + 6

= 21

Therefore, the result of 3 times x added to 6 is 21.

Hope this helped! ^^