Answer:
x = - 1 ; y =0
Step-by-step explanation:
−10y+9x= −9 --------------> EQU 1
10y+5x= −5 --------------> EQU 2
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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
