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MissTica
3 years ago
7
-3×+7y=5 -8×+14y=-10 By elimination
Mathematics
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1
answer:
dimaraw
[331]
3 years ago
5
0
-3x+7y=5 (x2) -> -6x+14y=10
-6x+14y=10
-8x+14y=-10
——————— -
2x=20
x=20/20
x=1
Susbstitute x=1,
-8x+14y=-10
-8(1)+14y=-10
-8+14y=-10
14y=-10+8
14y=-2
y=-2/14
y=-1/7
I hope it helps
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