SOLUTION: if a+b=5 and a-b=-7 What is the value of a and b

SOLUTION: if a+b=5 and a-b=-7 What is the value of a and b

Algebra.Com

Question 1029402: if a+b=5 and a-b=-7 What is the value of a and b
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
a+b=5
a-b=-7
Let's add these equations and get
2a = -2
so that
a = -1
and
-1 + b = 5
b = 6
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