Posted by: tenakha on: June 10, 2009
A simple example: 3x + y = 10 equation 1 2x + y = 7 equation 2 STEP 1 – We subtract equation 2 from equation 1 (so we eliminate the y’s) a) 3x -2x = x, b) y-y=0, c) 10-7 = 3 and we are left with: x = 3 STEP 2 – we [...]
