Question

. If ( 6-x ) : ( 7-x ) : : ( 18-x ) : ( 22-x ) then find the value of x. [5 marks]​

Answer 1

Answer:

x=3 1/3

Step-by-step explanation:

6-x/7-x=18-x/22-x

(6-x)*(22-x)=(18-x)*(7-x)

136-6x-22x+x^2=126-18x-7x+x^2

136-28x+x^2=126-25x+x^2

136-126=-25x+28x+x^2-x^2

10=3x

x=3 1/3