The sum of 3, and a number increased by 7, is -36

Question

The sum of 3, and a number increased by 7, is -36

Answer 1

A sum is the result of addition.,

The sentence could be rewritten

When you add 3 to a number increased by 7 the sum (result) is -36

 

3 + (n + 7) = -36          remove parenthesis only there for illustration

3 + n + 7 = -36            combine like terms

n + 10 = -36                 subtract 10 from both sides

n = -46

 

Check:

3 + (-46 + 7) 

3 + (-39)

3 - 39

-36