Originally Posted by
FalconPUNCH! $\displaystyle -4x+3y=17$
$\displaystyle 3x-2y=10 $
What you do is add the two equations together to cancel out some terms, but before you do that you'll need to get some of terms equal to each other.
$\displaystyle 2(-4x + 3y = 17)$
$\displaystyle 3(3x - 2y = 10) $
$\displaystyle -8x + 6y = 34$
$\displaystyle 9x - 6y = 30 $
You add the two equations up and the 6y cancel and you get this:
$\displaystyle x = 64 $
plug x into one of the equations and solve for y
-4$\displaystyle (64) + 3y = 17 $ Mr F edit: Corrected the equation.
-256$\displaystyle + 3y = 17$ Mr F edit: Added the negative and corrected the value.
$\displaystyle 3y = $273 Mr F edit.
$\displaystyle y =$91 Mr F edit: Corrected value of y.
you can double check to see if I did the math correctly. yeah I did something wrong sorry. I dont' have a calculator on hand right now.