Question

−10y+9x=−9 10y+5x=−5 ​

Answer 1

x = - 1 ; y =0

Explanation:

−10y+9x= −9 --------------> EQU 1

10y+5x= −5 ​ --------------> EQU 2

____________________

0 + 14x = -14 { add EQU 1 and EQU 2 }

x = -14/14

x = -1

Substitute the value of x in EQU 1;

-10y + 9 *(-1) = -9

-10y - 9 = -9

-10y = -9 +9 = 0

y = 0