Answer:
103 and 68
Explanation:
Given
A + B = 171
A - B = 35
Add the two expressions to eliminate B.
B + (-B) = B - B = 0
We have
2A = 206
Divide both sides by 2 to isolate A
2A/2 = 206/2
A = 103
Now substitute 103 for A in either expression to get B
Using the first expression , we have
A + B = 171
103 + B = 171
Subtract 103 from both sides
103 - 103 + B = 171 - 103
B = 68
The numbers are 103 and 68
Check
103 + 68 = 171
103 - 68 = 35