If 10 is added to thrice a number and this sum is multiplied by 5, the result is the same as if the ...

If 10 is added to thrice a number and this sum is multiplied by 5, the result is the same as if the number is multiplied by 5 and 13 is added to the product. What is the number?

Quiz

Answer/Solution

-3.7

Steps/Work

let the number be x;
5(10+3x)=5x+13;
x=-3.7
ANSWER:B