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

600 is 5/9 of what number
work out the volume of a cube edge 3cm
describe the basic particle from which all elements are made
Marcus is selling lemonade and peanuts.Each cup of lemonade costs 0.75¢,and each bag of peanuts costs 0.35¢.On Saturday,Marcus sold 5 more cups of lemonade than
Johnny and sally bought 4 pounds of mulch and two pounds if seedfor the garden.how many ounces of these products did they purchase?
Marcus is selling lemonade and peanuts.Each cup of lemonade costs 0.75¢,and each bag of peanuts costs 0.35¢.On Saturday,Marcus sold 5 more cups of lemonade than
Is new york city a rural, urban or suburban community?explain.
Jereen spent 1/4 hour on homework after school, another 1/2 hour after she got home, and final 1/3 hour after dinner. Did she spend more or less than 1 hour on
Here are a number of claims about the Declaration of the Rights of Man and the Declaration of Independence. Mark the statement if the claim is correct. A.The De
Which was the main reason for the problems between Native Americans and the English colonists in North America? A. inability to communicate with each other B. d