katibear
katibear katibear
  • 24-04-2015
  • Mathematics
contestada

c+2c+12=75
what is the value of c?

Respuesta :

JessicaRufus
JessicaRufus JessicaRufus
  • 24-04-2015
Simplify c+2c+12 to 3c+12
3c+12=75
Subtract 12 from both sides
3c=75−12
Simplify 75−12 to 63
3c=63
Divide both sides by 3
c=63/3
Simplify 63/3 to 21
c=21
Answer Link
Albina
Albina Albina
  • 24-04-2015
c+2c+12=75
3c + 12 = 75
3c = 75 - 12
3c = 63
с = 63 : 3
с = 21
______________________

3 
× 21 + 12 = 75
      63 + 12 = 75
              75 = 75
Answer Link

Otras preguntas

x^2-x=12 what is one of its solutions
I need help please 20 or more points please
He looked as if he had ran all the way. True O False He looked as if he had ran all the way . True O False​
Which energy transformation occurs in the 2nd step of photosynthesis?
Look at this word equation zinc + copper oxide → zinc oxide + copper a. Name the reactants. ...................................................... b. Name the p
Who was responsible for passing the Canadian bill of rights?
Can I please get some help with this probem?
Good day Statistical Methods tutor , I would like to know the formula for calculating the percentage of stockouts for the given period and the formula for the t
Complete this shape so that it is symmetrical about the reflection line
graph the system below 2x-3y=-18 3x+y=-5