SOLUTION: Hi. I need your help on problem solving. My math problem is as follows: Four times the sum of 7 and some number is -8. What is the number? I tried to solve this problem myself

Question 462362: Hi. I need your help on problem solving. My math problem is as follows:
Four times the sum of 7 and some number is -8. What is the number?
I tried to solve this problem myself, but was told it was incorrect. Please see below for an example of how I tried to solve this problem.
4x7+(-36)= -8
I tried to pick the correct catagory for this problem, sorry if it is incorrect.
Your assistance is greatly appreciated. :-)
Answer by amoresroy(361) (Show Source): You can put this solution on YOUR website!
Hi. I need your help on problem solving. My math problem is as follows:
Four times the sum of 7 and some number is -8. What is the number?
Let x = the number
4(7+x) = -8
7+x = -2
x = -9
The number is -9.
To check:
4(7-9) = -8
-8 = -8
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