Please Help
Solve the system by graphing.

Question

Please Help
Solve the system by graphing.

anonymous · Answer

attachment

hero · Answer

You have

$-2x = 2y - 4$
$2x - y = -5$

Divide both sides of the first equation by 2:
$-x = y - 2$
$2x - y = -5$

Isolate y in both equations:
$y = 2 - x$
$y = 2x + 5$

hero · Answer

Then use something like this to graph it: https://www.desmos.com/calculator/13z01tmntm

anonymous · Answer

I have to clue on using that lol

anonymous · Answer

It would be this right?

hero · Answer

Yes, correct

anonymous · Answer

Thanks, can you help me with a few more.

anonymous · Answer

Solve the system by using a table.

hero · Answer

Multiply both sides of both equations by 10:

-2x - 3y = 2
  4x - 3y = 14

Multiply the first equation by -1:

  2x + 3y = -2
  4x - 3y = 14

Add both equations together:
6x =  12
  x = 12/6
  x = 2

Since x = 2, plug it back into the original equation to find y:

-2(2) - 3y = 2
-4 - 3y = 2
-4 - 2 = 3y
-6 = 3y
-6/3 = y
-2 = y

So (2, -2) is the solution

anonymous · Answer

Thanks