Question

linear equation x+y=10 x-y =15​

Answer 1

Answer:

Simultaneously solve them.

I'll add them simultaneously to eliminate y:

x + x + y - y = 10 + 15

=> 2x = 25

=> x = 12.5

Hence,

x + y = 10

=> y = 10 - 12.5

= -2.5

Hence, x = 12.5, and y = 2.5.

Hope this helped.