Question

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

Answer 1

Answer:

Hey dear,

● Answer -

(A) x = 7

● Explanation -

# Given -

D = 7

Dx = 49

Dy = -63

# Solution -

Value of x can be calculated by -

x = Dx / D

x = 49 / 7

x = 7

Value of y can be calculated by -

y = Dy / D

y = -63 / 7

y = -9

Step-by-step explanation: