Solve 3x+2y=11 and x–4y=13 by elimination method
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Answered by
18
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3x+2y=11.....(1)
x-4y=13.......(2)
multiply equation (1)by 2and equation (2)by 1
6x+4y=22...(4)
x-4y=13....(5)
add equation (4)and (5)
6x+4y=22
x-4y=13
--------------------
7x=35
then x=5
substitute x=5 in equation (5)
x-4y=13
5-4y=13
-4y=8
y=-2
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