Question

1. Letting the unknown number be n, write each of the following as an equation and then find the value of the number.

(a) What do I add to 4 to get 7?
(b) From what number do I subtract 23 to get 12?
(c) Three times what number is 15?
(d) What number must be multiplied by 8 to get 32?
(e) What number must be divided by 3 to get-12?
(f) A quarter of what number is 3?​

Answer 1

Step-by-step explanation:

(a) 4+ n = 7, so n= 3

(B) n- 23 = 12 , so n = 23+12 = 35

(C) 3n = 15 , so n = 5

(D) 8n = 32, so n = 4

(e) n/3 = -12, so n = -36

(f) n/4 = 3, so n= 12