Question

Solve the following systems by substitution. Substitute the expression in the second equation into the first equation and solve. (If the system has no solution, enter NONE for each answer.)

x-y=-8
y=2x+12

Answer 1

Input y=2x+12 into the x-y=-8
That equals x-2x-12=-8
Solve for x

Answer 2

Once you solve for x, input x into one of the equations to solve for y

Answer 3

Do you get it or do you want me to solve it?

Answer 4

i dont understand where you got the -12 from

Answer 5

Well y is negative in x-y=-8 so you have to multiply 2x+12 by -1

Answer 6

so think of it like x-(2x+12)=-8

Answer 7

got it?

Answer 8

yes i did thank u so much

Answer 9

your welcome