Question

Please help
x-2.6y=-3.2

-x+4.5Y=7

Answer 1

one solution : (2,2)

Explanation:

hello :

the system is : x-2.6y=-3.2 ....(*)

-x+4.5y=7.....(**)

add(*) and(**) : -2.6y+4.5y = -3.2+7

1.9y=3.8

y = 3.8/1.9 =2

put this value in (*) : x - (2.6)(2) =-3.2

x =(2.6)(2) -3.2 =2

one solution : (2,2)