Check which of the following are solutions of the equation 2x + y = 7 , if (-2 , 11 ) .
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Answer:
2x + y = 7
=> (-2,11)
=> x = -2 and y = 11
=> 2 x -2 + 11
=> -4 + 11 = 7
=> 7 = 7
LHS = RHS
Hence verfied
:)
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