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Find the value of two numbers if their sum is 178 and their difference is 14
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Find the value of two numbers if their sum is 178 and their difference is 14

User Stefano Nardo
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1 Answer

11 votes
11 votes
x+y=178
x-y=14
Then you add the two equations together
2x=195
Divide both sides by 2
x= 97.5



Use equation 1 to substitute for x
x+y=178
97.5+y=178
Subtract 97.5 from both sides
Y=80.5
97.5+80.5= 178

One number is 97.5
The other number is 80.5
User SimonW
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