Question

Solve using substituiton method

Answer 1

Explanation:

Since the equations will have a different slope, there must lie only one solution so the 1st two options are wrong.

Let solve using substitution

`d = e + 4`

`e + 4 + e= 2`

`2e + 4 = 2`

`e = - 1`

Plug this back in for one of the equations,

`d - e = 4`

`d - ( - 1) = 4`

`d + 1 = 4`

`d = 3`

So the solution is (3,-1).