Solve the system using row operations (or elementary matrices). {-6x-7y=-1 {-7x+3y=77 x= y=

Write the system in the form of AX=B and solve it by finding and using inverse matrices. { n+d+q=23 ; 7+q+d=2n ; n+2d+5q=57 }

A Sillall software corporation borrowed $115,000 to expand its software line. The corporation borrowed some of the money at 3%, some at 4%, and some at 5%. Use a system of equations to determine how much was borrowed at each rate when the annual interest was $5,300 and the amount borrowed at 4% was times the amount borrowed at 3%. Solve the system using matrices. amount borrowed at 3% amount borrowed at 4% $ amount borrowed at 5% Need Help? Master It Read It Submit Answer

Solve the system of equations using augmented matrix methods x¹-2x²=-3 2x¹-x²=6