Question

Tell whether the equation X open bracket X + 4close bracket - X square + 3 + 5 x is a linear equation in two variable or not

Answer 1

No.
The equation you nentioned can be simplified into a linear equation in one variable in x and after solving that the value of x can be determined

Answer 2

x ( x+4) -x^2 + 3 + 5x = 0

x^2 + 4x - x^2 + 3 + 5x = 0

9x + 3 = 0

9x = -3

So, x = -3/9 = -1/3

Since x is the only variable here. Therefore this statement is not a linear equation in 2 variables.

Hope it helps!

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