Hi having trouble with this equation: I have tried using the subsitution and elimatnation method but still cannot get the correct asnwer to what the book has. which is Hope someone can help me. P.S
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Did you try rearranging it into: 2x+5y=11 7x-3y=18 ?
yes, i have tried that using elimination method
Use the equations I gave you in my last post, put them in a 2x3 matrix: 2 5 3 7 -3 18 Row-reduce it and you will end up with: 1 0 3 0 1 1 Which means x=3 and y=1.
thanks i worked it out.
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