SOLUTION: when 2 numbers added the sum is 148 when subracted the numbers difference is 20. what are the numbers?

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Question 787625: when 2 numbers added the sum is 148 when subracted the numbers difference is 20. what are the numbers?
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
You have a system of linear equations in two variables.
Use the substitution method to find the two numbers.
Let a and b be the two numbers.
a + b = 148
a - b = 20
You take it from here.