Question

Which value of a from the set {16, 18, 20, 22} makes the equation 2(42 - a) = 48 true? A. 16 B. 18 C. 20 D. 22

Answer 1

18

Explanation:

We are to determine the value of a

to do this we have to make a the subject of the formula. this can be achieved by taking the following steps

divide both sides of the equation - 2(42 - a) = 48 - by 2

42 - a = 24

take a to the right hand side and bring 24 to the left hand side

a = 42 - 24

a = 18