Question

For simultaneous equations in variables X and y,DX=49,Dy=-63,D=7 then what is X

Answer 1

Answer:

x=7;y=–9

Step-by-step explanation:

Dx=49

x=49/D

x=49/7(D=7)

x=7

and

Dy=–63

y=–63/D

y=–63/7(D=7)

y=–9