Question

i need help and will medal and or fan

Answer 1

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

6x + 2y = -6
3x - 4y = -18

12x + 4y = -12
15x = -30

8x + 4y = -4
14x = -10

6x - 8y = -36
-6y = -42

6x - y = -15
3y = 9

Answer 2

same as the first set?

Answer 3

ya

Answer 4

what's the solution for x and y in the first set?

Answer 5

i have no clue

Answer 6

6x+2y=-6 so, 3x+y=-3............(1)
3x-4y=-18...............(2)
(1)-(2)..
5y=15
y=3
then 3x=-3-3=-6 (using 1)
x=-2

Answer 7

now put these values of x and y in the rest of the sets and find out if they satisfy

Answer 8

for the first set of equation, it satisfies, so that's an equivalent system of equations

Answer 9

thanks you are a big help i think i get it now

Answer 10

you are most welcome!