Question

solve
3+sqrtz-11 = sqrtz+4

Answer 1

us parantheses please

Answer 2

ummm what?

Answer 3

is your equation like this?\[3+\sqrt{z-11}=\sqrt{z+4}\]

Answer 4

yes

Answer 5

ok, so just square both sides to get:\[(3+\sqrt{z-11})^2=(\sqrt{z+4})^2\]\[9+6\sqrt{z-11}+z-11=z+4\]which simplifies to:\[6\sqrt{z-11}=6\]\[\sqrt{z-11}=1\]square both sides to get:\[z-11=1\]\[z=12\]