Question

if 47x + 31y = 18 and 31x + 47y = 60, then find the value of x+ y​

Answer 1

Answer:

x+y=1

Step-by-step explanation:

let 47x+31y=18-equation 1

let 31x+47y=60-equation 2

add equation 1 from equation 2

=78x+78y=78

=78(x+y)=78

=x+y=78/78

=x+y=1

hope it helps you!