Explanation: Muhammad Al-Khwarizmi was an outstanding Persian mathematician. He was a strong advocate of Hindu numeric system that included number from 1-9 and 0. He said this numeric system had the power and efficiency of revolutionizing the entire Muslim world.
Simplify the equation to n-6=4n+18 subtract 4n from both sides n-6-4n=4n+18-4n -3n-6=18 add 6 to both sides -3n-6+6=18+6 -3n=24 divide both sides by -3 -3n/3=24/-3. n=-8 hope this helps!
