Question

What is the value of x
(X+40) (3x)
A. 20
B. 35
C. 60
D. 70

Answer 1

Answer: A. 20 is the answer.

Explanation:

x+40 = 3x

or, 40 = 3x-x

or, 2x = 40

or, x = 40/2

so, x = 20