Question

Consider the following pair of equations:

y = x + 4
y = −2x − 2

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

@fallenangelorchid

Answer 2

substitue y in the second equation fron the first one..

Answer 3

so x+4=-2x-2

Answer 4

yeah!

Answer 5

and then solve?

Answer 6

yup solve it to get x

Answer 7

substitute the value of x you got in any one of the two equation to get y

Answer 8

so -2x

Answer 9

what?? no
x+4 = -2x-2
bring x terms in one side ..
3x = -6
and solve

Answer 10

it still equals -2

Answer 11

substitute x=-2 in any one eqn to find y

Answer 12

2

Answer 13

yes so you have the answer

Answer 14

so the solution (x,y) = the value of x and y you got

Answer 15

(-2,2)

Answer 16

yes

Answer 17

Thank you for all you help

Answer 18

welcome