raevenbennett
y=-5x-6
y=-8x-6
system linear
Delete
Share
This Question is Closed
raevenbennett
Best Response
You've already chosen the best response.
0
@phi
phi
Best Response
You've already chosen the best response.
0
This looks like you can do the same thing as last time.
can you write down the equation we have to solve?
raevenbennett
Best Response
You've already chosen the best response.
0
|dw:1352930564084:dw|
phi
Best Response
You've already chosen the best response.
0
yes, I know that. but both right hand sides equal y so they equal each other.
can you write that down?
raevenbennett
Best Response
You've already chosen the best response.
0
no, i still not gettin it because its a lot to remember
phi
Best Response
You've already chosen the best response.
0
y=-5x-6
y=-8x-6
if -5x-6 equals y, you can replace y in the 2nd equation with -5x-6. Can you write that down?
raevenbennett
Best Response
You've already chosen the best response.
0
go it written down
phi
Best Response
You've already chosen the best response.
0
what do you have?
raevenbennett
Best Response
You've already chosen the best response.
0
am i doing y=-5x-6
phi
Best Response
You've already chosen the best response.
0
you have 2 equations
y=-5x-6
y=-8x-6
the 1st equation says y is -5x-6
that means you can replace y in the 2nd equation with -5x-6. after you do that what is this new equation?
raevenbennett
Best Response
You've already chosen the best response.
0
-8x-6
phi
Best Response
You've already chosen the best response.
0
what happened to the other side and what happened to the = ?
If we had
y= A
and
y= SOMETHING
we can replace y with A in the 2nd equation:
A= SOMETHING
can you use that same idea with
y=-5x-6
y=-8x-6
raevenbennett
Best Response
You've already chosen the best response.
0
sorry so it would be -8x-6=-5x-6
phi
Best Response
You've already chosen the best response.
0
yes. now that you have an equation, you can find x
I would start by adding +6 to both sides
-8x -6+6 = -5x-6+6
can you simplify this?
phi
Best Response
You've already chosen the best response.
0
I would simplify -6+6 to 0
raevenbennett
Best Response
You've already chosen the best response.
0
okay, i go that then whats next
phi
Best Response
You've already chosen the best response.
0
what do you have so far?
raevenbennett
Best Response
You've already chosen the best response.
0
-8x+0=-5x+0
phi
Best Response
You've already chosen the best response.
0
yes and you can simplify -5x+0 , right?
what do you get?
raevenbennett
Best Response
You've already chosen the best response.
0
-5or 5
phi
Best Response
You've already chosen the best response.
0
I get
-8x= -5x
if you add +8x to both sides you get
8x-8x = 8x-5x
of course 8x - 8x is 0 (you have 8x and take away 8x, to get 0)
0= 8x-5x
on the right side, you have 8x and take away 5x, what do you have left?
raevenbennett
Best Response
You've already chosen the best response.
0
@jackyluvv would you mind helping me with one more
phi
Best Response
You've already chosen the best response.
0
@jackyluvv please read the Code of Conduct
jackyluvv
Best Response
You've already chosen the best response.
0
sorry @phi if i did anything wrong