Paulgraz206id
Answered

Solve the following systems by elimination: x + y = 4
x – y = 6

Sagot :

Mlcparra16id
We add the two equations:
x + y = 4 
x - y = 6
  2x = 10
    x = 5

So:
x + y = 4
5 + y = 4
y = -1