Soru
Which system of linear equations has the ordered pair langle 4,-5rangle as a solution? 2x-5y=-30 and 7x+4y=-19 6x-y=-29 and 8x+3y=-17 3x-2y=22 and 2x+9y=-37 5x-6y=49 and x+8y=-27
Çözüm
4.2
(242 Oylar)
Gül
Elit · 8 yıl öğretmeni
Uzman doğrulaması
Cevap
To determine which system of linear equations has the ordered pair
as a solution, we need to substitute the values of
and
into each equation and check if the equations hold true.Let's start with the first system of equations:
and
Substituting
and
into the first equation:
Since the first equation does not hold true, we can conclude that the ordered pair
is not a solution to this system of equations.Now let's move on to the second system of equations:
and
Substituting
and
into the first equation:
Again, the first equation does not hold true, so the ordered pair
is not a solution to this system of equations either.Next, let's consider the third system of equations:
and
Substituting
and
into the first equation:
The first equation holds true, so let's substitute the values into the second equation:
Both equations hold true, so the ordered pair
is a solution to this system of equations.Finally, let's check the fourth system of equations:
and
Substituting
and
into the first equation:
The first equation does not hold true, so the ordered pair
is not a solution to this system of equations.Therefore, the correct answer is the third system of equations:
and