Question

How do solve the following linear system?: `6x+4y=-1 , 5x-5y=10`?

Answer 1

`x=7/10`, y= `-13/10`

Explanation:

This can be done either by elimination or substitution. Fro second equation it is x= 2+y. Substituting it for x in the first equation it would be 6(2+y) +4y=-1 which gives y= `-13/10` and hence x= `2-13/10 = 7/10`