Using substitution, what would be the best first step to solve this system of equations?

subtracting x from the first equation

Step-by-step explanation:

then you could plug in y=10-x into the second equation and it'd look like this:

2(10-x)=x+6

im a goose

step-by-step explanation:

gg5

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.