I need help super bad!!!!

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asked Dec 15, 2019 130k views

1 Answer

AJG · Answer 1 · 2019-12-22T06:48:50+0000

4x+7y=47 /*4 ------>16x + 28y=188
5x-4y=-5 /*7 -------->35x-28y=-35

16x + 28y=188, add this two equations
35x-28y=-35

16x + 28y+35x-28y=188-35
16x +35x=188-35
51x =153m
x=3

5x-4y=-5
5*3-4y=-5
15-4y=-5
4y=15+5
4y=20
y=5

Answer (3,5), B

I need help super bad!!!!

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