
Christopher L. answered 09/02/20
Experienced Tutor Specializing in STEM Education
To solve this word problem, reword it into an equation that you can solve.
Step 1: Let "a number" be the variable "x". When the question says "times", it means to multiply. Therefore, the equation that should be written is:
4x + 7x = 121
Step 2: Add like terms.
11x = 121
Step 3: Isolate the variable x by dividing both sides by 11.
(11/11)x = (121/11)
Step 4: Simplify
x = 11
In conclusion: The number is 11