Question

Explain why the equation 5z + 2 = 5z has no solution.

Answer 1

$5z + 2 = 5z \\ 5z - 5z = - 2 \\ 0 = - 2$

Answer : This is because when 5z minus 5z, it is nullified, with no way to determine the value of z. 5z - 5z = 0
That is why there is no solution for this equation.

Hope this helps. - M