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serious [3.7K]
3 years ago
9

Two numbers have the sum of 1212 and the difference of 518. What are the two numbers?

Mathematics
2 answers:
quester [9]3 years ago
4 0
The answers are 347 and 865. To solve this problem you set up two equations,
x+y=1212 and x-y=518. You then get the second x by itself by adding y to both sides. You then have x+y=1212 and x=y+518. After this you substitute the x into the first equation and have y+518+y=1212. Then simplify to 2y=694 and y=347
Now that y=347 you put it in the original equation. Solve and get that x=865
Maru [420]3 years ago
3 0
694
you just subtract 1212 by 518
694+518=1212
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