mirandacorbin1219
mirandacorbin1219 mirandacorbin1219
  • 02-09-2021
  • Mathematics
contestada

7. Seven times a number is equal to 12 more than 3 times the number.

Respuesta :

sah4519985
sah4519985 sah4519985
  • 02-09-2021

Answer:

7n = 12+ 3n

Step-by-step explanation:

The first thing to do is subtract 3n from 7n. This would get you 4n = 12. 4 times 3 equals 12, so n equals 3.

To check your answer. 21 = 12+9. sure enough it matches our answer

Answer Link

Otras preguntas

what's the English definition of these?
A six digit number begins with the digit 8. The number us divisible by 9. All digits of the number are different. What is the smallest possible value of this nu
Solve this equation using an algebraic method: (x + 4)( x - 4) = 9. Please use your own answer :)
evaluate p^2 - r^2 for p = 10, r = -4 and t = 5. 116 92 84
Which of the following is an effect of first-person point of view? A. The reader feels more emotionally detached from the story's events B. The reader can know
Which of the following is true about charcoal? a. It is made by mixing carbon and clay. b. It has been a main medium used by Japanese artists throughout hist
What is the plural for cousin?
which condition must exist in order for conduction to occur between two substances?
compare and contrast metaphors and similes and their purposes.
estimate 4,257 times 7