Question

Can you help me on this.

Answer 1

x=3

Explanation:

6 10

---------- = ------------

6+x 15

using cross products

6 * 15 = 10 * (6+x)

90 = 60+10x

subtract 60 from each side

90-60 = 60+10x-60

30 = 10x

divide by 10

30/10 = 10x/10

3=x