abgoodenough6 abgoodenough6
  • 17-10-2017
  • Mathematics
contestada

7x - 2 = 2y 3x = 2y - 1
Solve the system of equations by substitution.

(3/4, 13/8), (1/4, -1/8), no solution, coincident

Respuesta :

choixongdong
choixongdong choixongdong
  • 17-10-2017
7x - 2 = 2y
7x = 2y + 2
so
7x = 2y + 2
3x = 2y - 1 
----------------subtract
4x = 3
  x = 3/4

7x - 2 = 2y
7(3/4) - 2 = 2y
21/4 - 2 = 2y
21/4 - 8/4 = 2y
13/4 = 2y
so
y = 13/4 * 1/2
y = 13/8

answer
(3/4, 13/8)


Answer Link
xyz206 xyz206
  • 04-06-2021

Answer:

7x - 2 = 2y

7x = 2y + 2

so

7x = 2y + 2

3x = 2y - 1  

----------------subtract

4x = 3

 x = 3/4

7x - 2 = 2y

7(3/4) - 2 = 2y

21/4 - 2 = 2y

21/4 - 8/4 = 2y

13/4 = 2y

so

y = 13/4 * 1/2

y = 13/8

answer

(3/4, 13/8)

Step-by-step explanation:

Answer Link

Otras preguntas

what language would be like without the existence of the word class
How to graph 3 points f (x) = -2x + 5
y=-6 when x=-14 find x when y= -4
144 what equals 3000
Suppose 43,257,529 to 43,300,00. To what place value did you round the number
Which of the following organisms is an acoelomate? . . Earthworm . . Insect . . Flatworm . . Clam . .
if the bases of a trapezoid have lengths of 19 and 38, what is the length if the median?
when george calls walter prometheus to insinuate that walter has stubborn characteristics, which figure of speech is he using?
how do you turn .33333333 into a fraction
Whenever important physicists are discussed, Galileo Galilei, Isaac Newton, and Albert Einstein seem get the most attention. However, as you’ve seen, Galileo fo