Question 665679
Now, add them together...
x+y=5
x-y=1
...
x + x + y + -y = 5 + 1
Combine like terms
2x = 6
{{{highlight(x = 3)}}}
...
Multiply the second equation by -1 to get -x+y=-1
Add them together
x + -x +y + y = 5 + -1
Combine like terms
2y = 4
{{{highlight(y = 2)}}}
...
Check
{{{cartoon(
(1/5)(3) + (1/5)(2), 3/5 + 2/5,  5/5, 1)}}}
{{{cartoon(
3-2, 1)}}}
.....................
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