Question

1) For simultaneous equations in variables x and Dx=49,Dy=-63,D=7 then what is
valur of x​

Answer 1

Answer:

x = 7

Step-by-step explanation:

Given that,

• For simultaneous equations in variables x and Dx=49, Dy=-63, D=7 .

❤ According to Cramer's rule, ❤

x = Dx/D Or y = Dy/D

[ Putting values ]

➡ x = 49/7 Or y = -63/7

➡ x = 7 Or y = -9

➡ (x , y) = (7, -9)

Therefore,

• The value of x is 7.