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Find the value of two numbers if their sum is 178 and their difference is 14
Stefano Nardo
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Oct 21, 2022
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Find the value of two numbers if their sum is 178 and their difference is 14
Mathematics
high-school
Stefano Nardo
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Oct 21, 2022
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Stefano Nardo
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1
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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
SimonW
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Oct 24, 2022
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SimonW
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