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tigry1 [53]
3 years ago
7

Two times a number added to another number is 25. Three times the first number minus the second number is 20. What are both numb

ers?
Mathematics
1 answer:
lawyer [7]3 years ago
7 0

Answer:

the two number are 7 and 9

Step-by-step explanation:

2*x+y=25

3x-y = 20

add the two equations

2*x+y=25

3x-y = 20

---------------

5x = 45

divide by 5

5x/5 = 45/5

x = 9

lets find y

2x+y = 25

substitute x

2*9 +y =25

18+y =25

subtract 18 from both side

y = 25-18

y =7

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