Question

√(x-5)+7=x
Solve.

Answer 1

isolate radical first
then square both sides
\[(\sqrt{x-7})^{2} = (x-7)^{2}\]

Answer 2

**sorry should be a 5 in radical of course

Answer 3

\[\sqrt{x+5}=x-7\] taking square on both sides
\[(x+5)=(x-7)^{2}\] expand the left hand side and solve the quadratic equation

Answer 4

so x=-6 and -9?