Question 137226
Given : {{{ 5* abs(-9) + 13*abs(-1) }}}
{{{5 * 9 + 13*1}}}
{{{45 + 13}}}
{{{58}}}

clearly, I misunderstood your original problem. But I hope the math helps point the way for you. First thing you have to do is get the absolute values. They are always positive. Once you get them, work using the normal order of operations.

Let me know if you still don't understand.