Thursday, September 17, 2009

Substitution Method (for solving linear systmes)

l1: 2x+4y=8
l2: 3x+y=-13
Step 1: y=(-13-3x)/2x+4(-13-3x)=8
Step 2: 2x-52-12x+52=-12x=8=52
Step 3: -10x/10=60/-10
Step 4: x= -6
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