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प्रश्न
The sum of two integers is −13. If one of them is 8 then the other is
विकल्प
-5
-21
21
none of these
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उत्तर
-21
Let the other integer be x.
x + 8 = −13
=> x = −13 − 8
=> x = −21
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संबंधित प्रश्न
Indicate the following using '+' or '−' sign: 2 km above sea level
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An atom changes to a charged particle called ion if it loses or gains electrons. The charge on an ion is the charge on electrons plus charge on protons. Now, write the missing information in the table given below:
| Name of Ion | Proton Charge | Electron Charge | Ion Charge |
| Hydroxide ion | +9 | – | –1 |
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| Oxide ion | +8 | –10 | – |
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