santiagojaime
santiagojaime santiagojaime
  • 02-02-2022
  • Mathematics
contestada

Is (4,−1) the solution of the system of equations shown below?
3x+2y=10
−2x+y=−7

Respuesta :

NinjutsuDayDay
NinjutsuDayDay NinjutsuDayDay
  • 02-02-2022

Answer:

No, no it is not.

Step-by-step explanation:

First step : Solve for y in − 2 x + y = − 7.

y = 2 x − 7

Second step : Substitute y = 2 x - 7 into 3 x + 2 y = 10.

7 x − 14 = 10

Solve for x in 7 x - 14 = 10.

x = 24 / 7

Substitute x = 24 / 7 into y = 2 x - 7.

- 1 / 7

That means your answer is.

x = 24 / 7

y = − 1 / 7

Answer Link

Otras preguntas

Jim had 92 more marbles than Sam. After Sam gave Jim 18 marbles, Jim had twice as many marbles as Sam. How many marbles did Jim have at first?
Water’s molar mass is 18.01 g/mol. The molar mass of glycerol is 92.09 g/mol. At 25°C, glycerol is more viscous than water. Which substance has the stronger int
Agile methods in science engineering take which of the following approaches towards creating solutions? A. Create multiple hypotheses about why a phenomenon
a square swimming pool has a cement sidewalk around it. The sidewalk is the same width all the way around. The outside perimeter of the sidewalk is 80 feet. Wha
Help pls and thank you!!!
Which of the following is a composite number? A: 47 B: 91 C: 101 D: 131
Plz help me with this
Something sailors may see over the horizon
Que inspira a un autor del Neoclasicismo?
A _ degree burn is when all layers of skin are damaged