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postnew [5]
3 years ago
6

9(8 - x) = 3x Will mark brainlest!

Mathematics
1 answer:
Bess [88]3 years ago
3 0

Answer: x = 6

Step-by-step explanation:

9(8 - x) = 3x

72 -9x = 3x

add 9x to both sides

72 = 12x

divide 72 by 12

x = 6

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sela put 6 times as many coins now as she had 4 months ago. if sela has 240 coins now, how many did she have 4 months ago
yuradex [85]
Sela had 40 coins 4 months ago because 240 divided by six is 40.
5 0
3 years ago
Read 2 more answers
El quintuple de un número cuadrado disminuido en 9 da como resultado 36;¿cual es ese número?
hram777 [196]

Usando un sistema de ecuaciones, se encuentra que ese número es n = -3 o n = 3.

<h3>¿Qué es un sistema de ecuaciones?</h3>

Un sistema de ecuaciones es cuando dos o más variables están relacionadas y las ecuaciones se construyen para encontrar los valores de cada variable.

En este problema, la variable es el número n.

El quintuple de un número cuadrado disminuido en 9 da como resultado 36, o sea, la ecuación es:

5n² - 9 = 36

5n² = 45

n² = 9

n = -3 o n = 3.

Puede-se aprendes mas a cerca de sistema de ecuaciones en brainly.com/question/27305333

6 0
3 years ago
Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!
Black_prince [1.1K]
What are the choices
3 0
4 years ago
Fill in the blanks for each box
Aliun [14]

Answer:

hi

Step-by-step explanation:

7 0
3 years ago
16w =-3x - 15y for x
mario62 [17]

Answer: x= -5 1/3w -5y

Step-by-step explanation:

add -15y to other side. then divide by -3 on both sides. 16/-3= -5 1/3 w and 15/-3 is -5

8 0
3 years ago
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