Irene R. answered 12/20/19
BS in Mechanical Engineering and Certified math teacher for 13 years
Let's let x represent the missing number. Then the "quotient of a number and 8" would be written as: x/8
Next, "seven more" would be represented as: 7 + x/8
Lastly, "equals 3" would be represented as: = 3
Combining these expressions gives the equation:
7 + x/8 = 3
Use inverse operations to solve:
7 + x/8 = 3
7 + x/8 - 7 = 3 - 7
x/8 = -4
x/8 * 8/1 = -4 * 8/1
x = -32