a + b = 36
a - b = 4
We can add the equations together.
2a = 40
2a/2 = 40/2
a = 20
a + 20 = 36
a + 20 - 20 = 36 - 20
a = 16
Ches B.
asked • 03/02/19The sum of two numbers is 36 and the difference is 4
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