You can put this solution on YOUR website!
When simplifying expressions you must follow the order of operations. Some people use a pnumonic device PEMDAS to remeber the order, I've also heard "Please Excuse My Dear Aunt Sally."
P stands for Parenthesis (work them first from the inside out, in the order that follows.
E stands for Exponents.
M stands for Multiplication it goes with
D which stands for division working left to right
A stands for addition which goes with
S stands for subtraction (at first you do this left to right)
I'll use those letters to explain the steps:
26*1-6+5(12/4-3)=26*1-6+5(3-3) P and D
26*1-6+5(0)P and S
20 A (this is also the additive identity)