Question

Є два числа :х та у перше число більше від другого на 10. знайдіть правильний запис у-x=10 x-y=10 x=y+10 y=x+10 у= 10-х x=10-y y=x-10( вибрати усі правильні відповіді) ​

Answer 1

Х-у=10
х=у+10
у=х-10
аааааа

Answer 2

Answer in detail. There are two numbers: x and y, the first number is greater than the second by 10. Find the correct record

y-x=10 x-y=10 x=y+10 y=x+10 y= 10-x x=10-y y=x-10 (select all correct answers)

The correct answer is:

x = y + 10 y = x - 10

These are the only two records that satisfy the condition that the first number is greater than the second by 10. To see why, let's try to solve each record for x and y.

y-x=10 x = y - 10 y = x + 10 This record implies that the first number is smaller than the second by 10, which contradicts the condition.

x-y=10 x = y + 10 y = x - 10 This record is correct, as it implies that the first number is greater than the second by 10.

x=y+10 x = y + 10 y = x - 10 This record is also correct, as it is equivalent to the previous one.

y=x+10 x = y - 10 y = x + 10 This record implies that the first number is smaller than the second by 10, which contradicts the condition.

y= 10-x x = 10 - y y = 10 - x This record implies that the first number is equal to the second number, which contradicts the condition.

x=10-y x = 10 - y y = 10 - x This record is equivalent to the previous one, and also implies that the first number is equal to the second number, which contradicts the condition.

y=x-10 x = y + 10 y = x - 10 This record is correct, as it implies that the first number is greater than the second by 10.

Therefore, the only correct records are x = y + 10 and y = x - 10.