Last one i swear but still will mark brainliest > > > > > > > > > > > >

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

6x + 2y = −6
3x − 4y = −18

a. 8x + 4y = −4
17x + 2y = −28

b. 12x + 4y = 12
21x + 2y = −36

c. 6x + 8y = −36
15x + 6y = −60

d. 6x + y = 15
15x − y = −9

x = -2

y = 848

step-by-step explanation:

plug in the numbers

step-by-step explanation:

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.