Question

Which of the following is not a linear equation?
a) x + y + 1 = 0
b) x + 3 = 0
c) x = 7
d) xy + x + 3 = 0​

Answer 1

c) is incorrect

as the value of x is given as 7

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Answer 2

D ) XY +X +3 =0 IS NOT .......

THE REASON IS BOTH X AND Y ARE VARIABLES .....