For the following system, if you isolated x in the first equation to use the substitution method, what expression would you substitute into the second equation?

−x + 2y = −6
3x + y = 8

a-−2y + 6
b-2y − 6
c-2y + 6
d-−2y − 6

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?