A number is 60 more than another number. Their sum is 90

A number is more than another number. Their sum is

A number is 60 more than another number. Their sum is 90. What are the two numbers?

Let the 2 numbers be x and y, so we have
y = x + 60
x + y = 90
Rearranging Equation 1, we get x - y = -60

Setup System of Equations:
x - y = -60
x + y = 90

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