Question

5x +6y = 20
3x + 8y = 34

Answer 1

Explicación paso a paso:

3(5x + 6y)=3(20)

-5(3x+8y) =-5(34). 5x + 6y = 20

5x + 6(5) = 20

x= -2

15x + 18y= 60. +

-15x -40y= -170

____________

0. - 22y= -110

y = 5