Question

Решением каких уравнений является пара чисел (3; 2) ? А) – 3х + у = 7 B) – 3х + у = –7 C) 3х + 2у = 13 D) 3х + 2у = –13

Answer 1

Ответ: c)3x+2y=13

Пошаговое объяснение:

Answer 2

Ответ:

Ответ: c)3x+2y=13

Пошаговое объяснение:

Answer 3

To check which equation the pair of numbers (3, 2) satisfies, we simply need to substitute these values into the equations and see which one holds true.

A) –3x + y = 7 Substituting x = 3 and y = 2: -3 * 3 + 2 = -9 + 2 = -7, which is not equal to 7. So, this equation is not satisfied by the pair (3, 2).

B) –3x + y = –7 Substituting x = 3 and y = 2: -3 * 3 + 2 = -9 + 2 = -7, which is equal to -7. So, this equation is satisfied by the pair (3, 2).

C) 3x + 2y = 13 Substituting x = 3 and y = 2: 3 * 3 + 2 * 2 = 9 + 4 = 13, which is equal to 13. So, this equation is satisfied by the pair (3, 2).

D) 3x + 2y = –13 Substituting x = 3 and y = 2: 3 * 3 + 2 * 2 = 9 + 4 = 13, which is not equal to -13. So, this equation is not satisfied by the pair (3, 2).

So, the pair of numbers (3, 2) satisfies the equations B) –3x + y = –7 and C) 3x + 2y = 13.