Question

HELP PLEASE!

Which equation represents this sentence?

Three less than the product of seven and a number is four more than the number.

a) 7n−3+4=n

b) 7n−3=n+4

c) 3−7n+4=n

d) 3−7n=n+4

Answer 1

b) 7n−3=n+4 so then n=(7/6) so n =1.6666....

Answer 2

b) 7n−3=n+4

In this case, 'n' is used in place of the word 'number'. 'Product' refers to multiplication, so we multiply n by 7. 3 LESS refers to subtraction, so we subtract 3 from 7n. Then, we know that the solution to that is four more than what the actual number is. MORE refers to addition, so we add 4 to n.