Question 746857
8x + 4y = 48
4x – 2y = 40 MULTIPLY BY 2 & ADD
8X-4Y=80
8X+4Y=48
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16X=128
X=128/16
X=8 ANS.
8*8+4Y=48
64+4Y=48
4Y=48-64
4Y=-16
Y=-4 ANS.
PROOF:
4*8-2*-4=40
32+8=40
40=40
ANSWER A(8,-4)