Simultaneous using matrics met

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Simultaneous using matrics met

	@method0
Solve this pair of simultaneous equation usin the matrix method. 3x+2y=3 2x+3y=7 (plze show ur workin) posted: 23 June 10 / last action: 2011
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	@duminko	27 December 10
	let x be[a b]&y[c d].there4:3[a b]+2[c d]=3(1) and2[a b]+3[c d]=7(2).sub (1)&(2):[a b]=-4+[c d](3)then take(1):replace

	@duminko	27 December 10
	replace[a b] wit -4+[c d]:3(-4+[c d])+2[c d]=3.after solv tll be[5c 5d]=15 ie c=3,d=3.take(3):[a b]=-4+[3 3],a=-1,b=-1