2х + 3 = 5х – у
Complete the missing value in the solution to the equation?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

I’m really confused and need to learn this