Question

Consider the following pair of equations:

y = −2x + 8
y = x − 1

Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Answer 1

substitute first y into the second equation
-2x+8=x-1 and solve for x
then take the value of x and subtitute into the first equation
y=-2(x)+8

Answer 2

Well, thank you so much. I really appreciate it!

Answer 3

-2x+8=x-1
-2x-x = -1-8
-3x =-9
x = -9/-3
x = 3

Answer 4

y = x − 1
y = 3 - 1
y = 2

Answer 5

so (3,2)