Question

Use the substitution method (show your work and good luck!)

x+y=2
x-y=-10

Answer 1

So x+y = 10 ....(i
x-y= 2....(i)
From (ii) x= y + 2
Substituting in (i), we have
y + 2 + y = 10
= 2y + 2 = 10
= 2y = 8
→V=
4 and x =
6