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Question

Find the values of x and y for
x+12y=92
14x16y=56


A

x = 5, y = -1

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B

x = -4, y = 2

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C

x = 4, y = 1

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D

x = 12, y = 13

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Solution

The correct option is C

x = 4, y = 1


x+12y=92 __________(1)
14x16y=56___(2)
From equation (1), we get
x=9212y ___________(3)
Plug this value of x in equation (2)
14(9212y)16y=56
9818y16y=56
724y=724
y=1
Substituting this value of y in equation (3), we get
x=9212
x=4


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