Find all real solutions:
7
x
+
9
−
6
=
0
\displaystyle \sqrt{{{7}{x}+{9}}}-{6}={0}
7
x
+
9
−
6
=
0
x
=
\displaystyle {x}=
x
=
. (If no solution exists, enter DNE)
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\displaystyle
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity