Question

For 4х + 5y = 10 and 5х + 4=
17 , x+y= ? *
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Answer 1

Answer:

x+y= 5-2=3

20x+25y=50

20x+16y=68

9y=-18

y=-2

4x=20

x= 5

Answer 2

Step-by-step explanation:

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