Question

solve using substiution method 2x-8y=6 ; y= -7-x​

Answer 1

Answer:

2x-8y=6;y=-7-x

putting the value of y in x.

2x-8(-7-x)=6

2x+56+8x=6

10x+56=6

10x= -50

x=-50/10

x=-5

y=-7+5

=-2

Answer 2

Answer:

x= -5

y= -2

Step-by-step explanation:

given: 2x - 8y = 6

         y = - 7 - x

just putting y = - 7 - x in the given equation

we get

2x - 8(- 7 - x) = 6

2x + 56 + 8x = 6

10x = -50

x = -5

Substituting the value of x in  the y equation

we get

y = -7 - (-5)

y = -7 + 5

y = -2