Question

20 + 25 + 50(x - 2) = C

Arianna paid a total of $145 to check all her bags on a flight. How many bags did she check in all?

Answer 1

20 + 25 + 50(x - 2) = C
20 + 25 + 50(x - 2) = 145

can you solve it

Answer 2

$145 - ($20 + $25) = $50(x - 2)
$145 - ($45) = $50(x - 2)
$100 = $50(x - 2)
Just divide each side by $50, add two to both sides, and you have your answer.