Answer: The correct options are
(A) (-8, 2) and (B) (5, 4).
Step-by-step explanation:
(1) We are given to solve the following system of equations by substitution :
Substituting the value of x from equation (i) in equation (ii), we get
From equation (i), we get
So, the required solution is (-8, 2).
Option (A) is CORRECT.
(2) We are given to solve the following system of equations by elimination :
Adding equations (iii) and (iv), we get
From equation (iv), we get
So, the required solution is (5, 4).
Option (B) is CORRECT.
Thus, the correct options are
(A) (-8, 2) and (B) (5, 4).