Realiza las siguientes ecuaciones (realizar el procedimiento y comprobación) 2- x = x- 8

3 + 3x -1 = x +2+ 2x

2x -5x = 8 +1

6x -4 =2

ayuda por favor!!

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years