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ipn [44]
3 years ago
14

2x + 7y = - 10 2x + 2y = 20

Mathematics
2 answers:
Bess [88]3 years ago
5 0

Step-by-step explanation:

for the second one slope is -1 when the y intercept is (0,10)

vredina [299]3 years ago
5 0

Answer:

x=16, y= -6

Step-by-step explanation:

(2x+2y) - (2x+7y)=20-(-10)

2x+2y-2x-7y=30

-5y= 30

y=30/-5

y= -6

2x+2*-6=20

2x-12=20

2x=20+12

2x=32

x=32/2

x=16

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