Question

Solve the system by substitution
6х + 2y = -26
x – 6у = 21

Answer 1

y=-4

x=-3

Explanation:

6x+2y=-26 (equation 1)

-6x+36y=-126 (equation 2)

38y=-152

Both side divide by 38

`(38)/(38)`y=
`(-152)/(38)`

y=-4

substitution y=-4 in(equation 1)

6x-8=-26

6x=-18

x=-3

substitution y=-4 in(equation 2)

x+24=21

x=-3