Question

A company charges $7 dor a t-shirt and ships any order for $22 a school principal ordered a number of t-shirts for the school store the total cost of the order was 1,520 how many t-shirts did the principal buy

Answer 1

the equation is

`7x+22=1520`

then solve for x

`\begin{gathered} 7x+22-22=1520-22 \\ 7x=1498 \\ (7x)/(7)=(1498)/(7) \\ x=214 \end{gathered}`

answer: the principal bought 214 t-shirts