Question

Solve the system x + y = 6 and x - y = 2. What is the value of x?
6

2

4

0

Answer 1

is it 4?

Answer 2

If you add the two equations it will eliminate y and enable you to confirm the value of x.

Answer 3

@johnweldon1993 johnnyboy it is 4 right?

Answer 4

thanks @kropot72

Answer 5

-.- lol that's how you call me? lol...yes as @kropot72 said...you add the 2 equations and then you have 2x = 8

so yes x = 4

Answer 6

\[x=6-y\] then change the value of x in the second equation to get\[(6-y)-y=2\]rearrange to get\[2y=4\]therefore\[y=2\]put this value into one of the equations to get\[x+(2)=6 \]\[x=4\]

Answer 7

thanks @malcolm11235
and johnnyboy of course thats how i call you, you know you like it;)