Question

A pair of linear equations which has a unique solution x=2 and y=-3 is :
(A) x + y = 1 and 2x – 3y = -5
(B) 2x + 5y = -11 and 3x – 2y = 12
(C) 2x + 5y = -11 and 4x + 10y = -13
(D) x + y = 1 and 5r - y - 13 = 0​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

B) 2x + 5y = -11

2(2)+ 5(-3)=-11

4 - 15 = -11

-11 = -11

&

3x - 2y = 12

3(2) - 2(-3)=12

6 -2×-3 =12

6+6=12

12 = 12