Question 372161
|{{{(1/3)x - 9}}}| = 10.  This equation is actually two-equations-in-one.  It's equivalent to solving the equations {{{(1/3)x - 9}}} = 10 or {{{(1/3)x - 9}}} = -10 . The first:  x/3 = 19, or x = 57, after transposition and cross-multiplication.  The second: x/3 = -1, or x = -3.