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Mathematics, 14.01.2021 01:00 katyym80

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number and let y represent the second number. What is the value of the first number? Use the table to guess and check.
Numbers
Х
у
x+y=40
y=2x-5
15
20
25
30

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