Solve:
2
x
+
9
=
7
\displaystyle {2}{x}+{9}={7}
2
x
+
9
=
7
x =
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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