Question

For simultaneous equations in variables x and y, Dx = 49, Dy = – 63, D = 7 then what is x? ​

Answer 1

Answer:

hey mate

Step-by-step explanation:

Dx = 49

x = 49/D

x = 49/7 = 7

hope it help u

Answer 2

Answer:

we know that d=7

Dx=49

7×x = 49

x = 49/7

x = 7

Dy = -63

7×y=-63

y=-63/7

y=-9