alyssamiller401
14.07.2021 •
Mathematics
7. La somme de deux multiples de 3 consécutifs est de 129. Quels sont ces deux nombres?
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Ответ:
Les deux nombres doivent avoir une différence de 3. Algébriquement, ce serait x + (x + 3) = 129. 2x est alors égal à 126. X est égal à 63 et x + 3 est à 66. Ces nombres sont des multiples consécutifs de 3 dont la somme est de 129.
Step-by-step explanation:
The two numbers must have a difference of 3. Algebraically, it would be x + (x + 3) = 129. 2x then is equal to 126. X equals 63 and x + 3 is 66. These numbers are consecutive multiples of 3 whose sum is 129.
Ответ:
Step-by-step explanation:
6x + 11 = 7x + 14
7x - 6x = 11 - 14
x = - 3
Hope it will help :)