Question

Відомо, що пара чисел (-3; m) є розв'язком рівняння 3x-y=7. Знайти m.

Answer 1

Ответ:

-16

Объяснение:

-3 - це наш х, а м - у

тоді, 3•(-3)-у =7

-9-у=7

у= -16. = м

Answer 2

Finding the Value of 'm' in the Equation 3x - y = 7

To find the value of 'm' in the equation 3x - y = 7, given that the pair of numbers (-3, m) is a solution, we can substitute the values into the equation and solve for 'm'.

Substituting x = -3 and y = m into the equation 3x - y = 7, we get:

3(-3) - m = 7

Simplifying the equation, we have:

-9 - m = 7

To solve for 'm', we can isolate the variable by adding 9 to both sides of the equation:

-9 - m + 9 = 7 + 9

Simplifying further, we get:

-m = 16

Finally, to solve for 'm', we can multiply both sides of the equation by -1:

-m * (-1) = 16 * (-1)

This gives us:

m = -16

Therefore, the value of 'm' in the equation 3x - y = 7, given the pair of numbers (-3, m) is a solution, is m = -16.