Question

x-2y=-4
3x+2y=12

solve by substitution

Answer 1

if you solve for x in the first equation you get:

x = 2y -4

Now, substitute x = 2y -4 in for x in the bottom equation

3(2y-4) + 2y = 12

Solve for y

Then put the answer you get for y back into the first equation, and solve for x

Answer 2

how do you graph it ?
it tells me to find the point where they intersect

Answer 3

whatever you get for x and y is the point (x,y) where the will intersect

Answer 4

they*

Answer 5

put both equations in y = mx +b form

the first one would be

-2y = -x -4
y = 1/2x + 2

Answer 6

now you know the slope for the first one (1/2)

Answer 7

start putting in points for x and y, so start with 1. put 1 in for x, then see what you get for y
then you can plot your first point (x,y)
keep doing that until your line is long enough.
then do it for the second one. then see where they intersect