Monday, July 5, 2010

Please help me to answer these problem using Cramer rule?

i need to answer these one and i find it hard whenever theres a fraction please i appreciate it and if you know some Cramer rule video with sample /fraction i will appreciate it so much..and here is also decimal



here we go



1). x/2 y/4=4

x/4-3y/y=-2



2). 0.5x 1.5y=7

2.5x 3.5y=-9
Firstly to get rid of the fractions just multiply each term on both sides by the denominators (usually only have to use one to cover both) ... like for the first equation:



x/2 y/4 = 4 if you multiply both sides by 4 you

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