Question

Find the value of x and y
DX =49 , DY= -63

Answer 1

Step-by-step explanation:

For simultaneous equations in variables x and y, dx = 49, dy = - 63, d = 7 then what is x ?

(a) 7

(b) -7

(c) 1/7

(d) -1/7

Answer 2

Answer:

X=7 and Y=-9

Step-by-step explanation:

let D=7

DX=49

7*7=49

so X=7

DY=-63

7*-9=-63

so-9=Y