Four times the sum of a number and -3 is 7 more than quadruple the number. Write and solve an equation to find the number.

Answer 1

The sum of a number and -3 is...

n + (-3), or n - 3

Four times that is...

4(n - 3)

"Is" is =.

The rest is self explanatory.

4(n - 3) = 4n + 7

4n - 12 = 4n + 7

-12 = 7

0 = 19

Well, hey, that's not true. If this is indeed stated correctly, no such number exists!

Note: This does NOT mean your answer is 0!