Answer:
Explanation:
Two equations are 3x + y = 9 ------------(1)
and 3x - 5y = 15 ----------(2)
we have to calculate the value of x common for both.
We multiply equation 1 by 5 and add it to equation 2
15x + 5y = 45
3x - 5y = 15___
18x = 60
x = 60/18 = 10/3