Given the system of equations One-third x minus two-thirds y = 7 and two-thirds x + 3 y = 11, which numbers can be multiplied by the equations to eliminate the x-variable? Check all that apply. –6 times the first and 3 times the second
6 times the first and –3 times the second
–3 times the first and 6 times the second
3 times the first and –6 times the second
2 times the first and –1 times the second