Question

fan and medal
need help asap.

Answer 1

1. Consider the system of equations.

2x + 6y = -4

x - 2y = 18

(a) Dean rewrote the second equation as 3x – 6y = 54. What justification did he have for doing this?

(b) Dean combined the equation in Part (a) with the first equation in the system to get x = 10. Explain why Dean was justified in doing this.

(c) What is the solution of the system?

Answer 2

@JL0900

Answer 3

@jhonyy9

Answer 4

please help

Answer 5

ok i m here and i will try help you but please collaborate - ok. ?

Answer 6

yes i will

Answer 7

so check this please

x - 2y = 18 how you get from this the below equation

3x – 6y = 54.

Answer 8

i dont know

Answer 9

so looke please how you get from x so 3x ?

Answer 10

by multiplying

Answer 11

idk

Answer 12

yes sure by multipliying by 3 - yes ? and than you check in this way you get from 18*3=54 too - ok ?

Answer 13

ok

Answer 14

so what will be the next step ?

Answer 15

idk

Answer 16

thank you soo much for helping me but i have to turn this in in 6 mins

Answer 17

2x + 6y = -4

x - 2y = 18 from this multiplied by 3 resulted 3x -6y =54 yes ?

so than you rewrite these equations

2x+6y= -4
3x-6y=54
--------------- and add the same terms what you will get ?

5x 0 = 50

5x=50

x=10

right ?

Answer 18

right

Answer 19

so in this way you get the value of x so now just substitute in place of x inside one equation and calculi the y value

do you can get it ?

Answer 20

no sorry i am very bad at math as you can see

Answer 21

do you think you could do it for me
I have to turn it in in 5 mins

Answer 22

moment please


x - 2y = 18

x=10

10 -2y=18

-2y = 8

y=8/(-2)

y= ?

Answer 23

-4

Answer 24

very nice

do you understand it now ?

Answer 25

sort of

Answer 26

ok

was my pleasure

good luck

bye bye

Answer 27

anytime just tag me

bye bye