Question 1077751
By substitution:
x + y = 16 subtract y from both sides:
x = 16-y
:
x-y = 10 here substitute for x:
16-y-y = 10
-2y = -6
y = 3 and since 16-y = x then 16-3 = x = 13
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by addition:
x+y = 16
x-y = 10
2x = 26
x = 13 and since x+y = 16, then 16-13 = y = 3
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As you see, your answer is (13, 3)