SOLUTION: Solve the following system of equations for x: x+y=6 x-y=2

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Question 1140781: Solve the following system of equations for x:
x+y=6
x-y=2
Found 2 solutions by Boreal, MathLover1:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
can add the two equations
x+y=6
x-y=2
2x=8
x=4
not asked for but y=2

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

x%2By=6.......eq.1
x-y=2.......eq.2
----------------------add both
x%2By%2Bx-y=6%2B2
2x%2Bcross%28y%29-cross%28y%29=8
x=8%2F2
x=4
go to x%2By=6.......eq.1 plug in x value
4%2By=6
y=6-4
y=2