devin06 devin06
  • 13-07-2015
  • Mathematics
contestada

the sum of twice a number and 18 less than the number is the same difference between -30 and the number. What is the number?

Respuesta :

naǫ
naǫ naǫ
  • 13-07-2015
x - the number

[tex]2x+x-18=-30-x \\ 3x-18=-30-x \\ 3x+x=-30+18 \\ 4x=-12 \\ x=\frac{-12}{4} \\ x=-3[/tex]

The number is -3.
Answer Link

Otras preguntas

Julia has 14 pounds of nuts. There are 16 ounces in 1 pound. How many ounces of nuts does she have?
I'll give crown if you answer 1-5
How do I solve numbers 7-12 ?
What is the primary purpose of photosynthesis? to capture light energy, convert some of it into chemical energy, and store it in the form of carbohydrates for o
I need help on how to do all of this pls.
why has macbeth been adapted so many times over the past 400 years
What is 270° converted to radians?
Usted _____ pone la ropa. A. me B. te C. se D. nos E. os
Please help me on this one. I don't know the equation to solve it. I really need help!!
during meiosis, if one chromosome does not separate from another it leads to trisomy on a in the genetic code. what is the failure separate called