peytan18 peytan18
  • 03-09-2018
  • Mathematics
contestada

x+2x=9
what does x equal? and how do I get the answer?

Respuesta :

tramserran
tramserran tramserran
  • 03-09-2018

add like terms on the left side (x + 2x), then isolate the variable on the left side by dividing both sides by 3.

x + 2x = 9        

    3x = 9           added like terms

     x = 3             divided both sides by 3

Answer: 3

Answer Link

Otras preguntas

couldn't show it all but can someone help me out ​
A block of iron has a volume of 60 cm3 and it's mass is 420 g then it's density is
What was the result of the Assyrian invasion of the Kingdom of Israel?
368 base 9 plus 788 base 9
Describing development
What is the function of the nucleus in plant and animal cells?
What project provided the "smoking gun" that then President Boris Yeltsin was taking bribes?
How did Egypt depend on thr kingdom of kush
How do countries develop a comparative advantage over their trading partners? O A. By producing more essential goods than other countries B. By lowering the tra
Cyrus Avery is known for __________. A. founding ConocoPhillips, one of the largest energy companies in the world B. drilling Nellie Johnstone No. 1, one of the