Question

Sistema de ecuaciones lineales
4x + 2y =-4
3x -4y= -21

Answer 1

4x+2y=−4

2(2x+y)=-4

2x+y=-4/2

2x+y=−2

2x=-2-y

x=-2-y/2

x=-1-y/2

3x−4y=−21

3x=−21+4y

3x=4y−21

x=4y-21/3