Posted by alejandro on Monday, March 14, 2011 at 4:50pm.
how do i solve systems?
example y=x2 y=4x+1

pre algebra  Reiny, Monday, March 14, 2011 at 5:25pm
set y = y
4x + 1 = x  2
you finish it.

pre algebra  Jessica, Monday, March 14, 2011 at 5:26pm
Multiple the first equation by 1:
y=x+2
Add it from the second one to get:
y=4x+1 +(y=x+2)= 0=3x+3
Subtract 3 from both sides:
3=3x
Divide by 3
x=1
Plug it in for one equation:
y=(1)2
y=3
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