Question

Liz and Sucely were texting. The number of texts that Sucely sent was three times the difference of the number of texts liz send and the number 5.If Sucely sent 21 texts, how many texts did Liz send?

Answer 1

12

Explanation:

We'll give Sucely the variable s and Liz l.

s = 3(l - 5)

21 = 3(l - 5) distribute the 3

21 = 3l - 15 add 15 to each side

36 = 3l divide each side by 3

12 = l

So, Liz sent 12 texts