7u+1v=2 and 14u-4v=2 solve by elimination method
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7u + v=2--------(1)X2
14u-4v=2--------(2)
:. 14u+2v=4-----(1)
-14u +4v=-2)-----(2)
:.6v=2
:.v=1/3--------(3)
keeping the value of equation (3) in (1)
:.7u+1/3=2
:.7u=2-1/3
:.7u=5/3
:.u=5/3*7
:.u=5/21
14u-4v=2--------(2)
:. 14u+2v=4-----(1)
-14u +4v=-2)-----(2)
:.6v=2
:.v=1/3--------(3)
keeping the value of equation (3) in (1)
:.7u+1/3=2
:.7u=2-1/3
:.7u=5/3
:.u=5/3*7
:.u=5/21
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