jmasa2001
jmasa2001 jmasa2001
  • 12-09-2020
  • Mathematics
contestada

solve using elimination method

-3x + 5y = 8
-2x + 7 y = -2​

Respuesta :

Аноним Аноним
  • 12-09-2020
  • Answer:

x = - 6

y = - 2

  • Step-by-step explanation:

-3x + 5y = 8  | ×(-2)

-2x + 7 y = -2​ | ×3

6x - 10y = - 16

- 6x + 21y = - 6

add

6x - 6x - 10y + 21y = - 16 - 6

11y = - 22

y = - 22 : 11

y = - 2

replace y

- 2x + 7(-2) = - 2

- 2x - 14 = - 2

- 14 + 2 = 2x

2x = - 12

x = - 12 : 2

x = - 6

Answer Link

Otras preguntas

When a sentence has more than one subject they’re called?
100 Priority Mail Express packages cost $1,309.00 to mail. How much does 1 priority mail express package cost to mail?
Identify the underlined element in the following passage from the novel Bleak House by Charles Dickens."Fog everywhere. Fog flowing up the river, among green ba
Which is an example of an insight? A)Dripping water deposited minerals, creating thousands of stalagmites and stalactites. B)The caverns were formed by an
identify two liberties that shakespeare takes with history in macbeth
which is a concrete noun- flower- respect- good- love
1.Completa la oracion con la forma correcta del verbo El estudiante _____ tomar un examen. (Deber) 2.Which question word is best here? ________ vas? A. Adonde
Combine these radicals.A rectangle has an area of (x2 − 17x + 72) square units. Since the area of a rectangle is determined using the formula, A = lw, what coul
for what values of p will the equation x^2 =p have 2 real number solutions
Where does 90 percent of the information you need to drive safely comes from