+522 Let $a_1,$ $a_2,$ $a_3,$ $\dots,$ $a_{10},$ $a_{11},$ $a_{12}$ be an arithmetic sequence. If $a_1 + a_3 + a_5 = 22$ and $a_2 + a_4 = 17$, then find $a_1$.
+1944 oops, sorry. just realized I sent the wrong link...silly me
https://web2.0calc.com/questions/algebra_5878
