Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - y = -11
2x + 3y = 5

Question

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - y = -11
2x + 3y = 5

anonymous · Answer

(A) -4x - 9y = -19
-10y = -30 
(B) 4x + 3y = 5
2y = -6 
(C) 7x - 3y = -11
9x = -6 
(D) 12x - 3y = -33
14x = -28

anonymous · Answer

The solution is (-2, 3)

anonymous · Answer

I know that the choices cannot be B or C.

anonymous · Answer

Can u help me? @ganeshie8 @Hero @HelpBlahBlahBlah @pooja195

anonymous · Answer

D

zale101 · Answer

Have you tried solving the system of linear equations for A and D?

anonymous · Answer

I think for those choices are (-2, 3). That's why I got stuck

zale101 · Answer

For A
-4x - 9y = -19
-10y = -30
I used substitution, where i solve for y for the equation -10y = -30 and got y=3, then plug y=3 for the equation -4x - 9(3) = -19

$-4x-27=-19$ add 27 to both sides $-4x=8$ divide -4 to both sides to solve for x, and you'll get x-2

so we got x=-2 and y=3

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