Question

bye

Answer 1

start with y = −2x + 8

replace the 'y' with 'x-1'

this replacement is possible because the second equation is y = x-1

Answer 2

y = −2x + 8

x-1 = −2x + 8

do you see how to solve for x?

Answer 3

yeah you solve for x, in other words, isolate x

Answer 4

you forgot about that -1 on the left side

Answer 5

3x-1 = 8

Answer 6

yep if 3x = 9, then what is x?

Answer 7

no

Answer 8

3x = 9 means "3 times something equals 9"

Answer 9

yeah x = 3

Answer 10

now that we know x = 3, you can plug it into any equation with x and y

Answer 11

hope will help you