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aleksklad [387]
3 years ago
15

{ y = x + 5 ,4x + y =20 }

Mathematics
1 answer:
Tju [1.3M]3 years ago
4 0
4x+(x+5)=20
5x+5=20
5x=15
X=3
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\bf \begin{array}{lccclll}
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\begin{cases}
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