Jina had 7/8 of a spool of yarn. she used 3/4 of it for her project. what fraction of the spool was used for her project

What is the solution for the following system of equations? use any method to solve. 2x + 8y = 4 x = -3y + 5 question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5