Question

x-y=6and x+y=8 find the value of x

Answer 1

Answer: Tip: Simultaneous equations

Step-by-step explanation:

y=6-x and y= 8-x

6+x=8-x

re arrange

2x=14

x=7

Answer 2

Step-by-step explanation:

x=6+y 1

x=6+y

so

6+y +y=8

6+2y=8

2y=8-6

2y= 2

y=2/2

y=1

from 1

x=6+y

y=1

x=6+1

x=7