Seven tenths of a number plus fourteen is less than forty-nine

I'm going to assume you need this inequality solved.

First, write it as numbers, not words.

7/10n + 14 < 49

where "n" is the unknown number.

Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.

7/10 = 0.7

Now, solve it like you would any other equation.

0.7n + 14 < 49

0.7n + 14 - 14 < 49 - 14

0.7n < 35

0.7n : 0.7 < 35 : 0.7

n < 50

The answer is n < 50