Question

Choose a system of equations with the same solution as the following system:

6x + 2y = −6
3x − 4y = −18

Answer 1

sorry but the equation editor is not really good any way do you know how to solve this two equations?

Answer 2

hint: multiply the first equation by 2 to get rid of y

Answer 3

oh ok

Answer 4

....(1)..... 6x + 2y = −6
....(2).....3x − 4y = −18
2*6x+2*2y=2*-6
=12x+4y=-12

the sum of (1)+(2)
12x+4y=-12
3x-4y=-18
15x=-30
x =-30/15

Answer 5

oooooooo ok

Answer 6

so that is the equation for both right?

Answer 7

after that you replace x in the equation with the real value to get y
x = -30/15= -2

Answer 8

replace x here ....(2).....3x − 4y = −18

Answer 9

with -2

Answer 10

3(-2)-4y=-18
-6-4y=-18
-6+18=4y
12=4y
y=12/4
y=3

Answer 11

thank u so much tbh

Answer 12

do you really understand what i did or you want me to explain further more? :)

Answer 13

i do i understand for like the first time :3 thank you