Question

Question 1If a = 9 and b = 4, what is the value of 2a - b?A 10B 14 C 25D 72

Answer 1

To answer this question, we need to substitute the corresponding values of a and b in the respective algebraic expression, as follows:

a = 9, and b = 4

`2a-b\Rightarrow2\cdot(9)-4=18-4=14`

Therefore, the value for the expression is 14 (option B).