Answer:
The number is 132
Explanation:
First we write an equation to represent the problem.
Anytime a story problem says "a number" we can use x. Sum means addition. Divided is division. "Is" tells us where to put the equals sign.
12+x/8=18
Solving for x:
Multiply both sides by 8 to get rid of the fraction.
12+x=144
Subtract 12 from both sides.
x=132