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

Need help please, it urgent. Which event introduces the solution in this passage? Tamica stood gasping at the window next to the gate, watching her plane taxi
A rectangle with a length of x + 5 has a perimeter of 4x + 14. 1. Write the expression for the width of the rectangle in terms of x. 2. Suppose the perimeter of
LifeCharge Batteries claims that their batteries last an average of 210 hours when used in a hand held gaming system, with a standard deviation of about 9 hours
I need help with analogy, thanks! (°ロ°)☝
define the word conflict​
6.A ladder of 10mt length touches a wall at height of 5 mts, then the angle made by the ladder withthe ground is12]1) 60°2) 45°3) 30°4) none​
What role does the esophagus play in the human body and what is its importance in the human body
1-2 (2x + 1) = 1 -(x-1 )​
Hi ANSWER FAST PLESE
How many mL of medication are needed to last 10 days if the dose of medication is 2.5 tsp TID (three times a day)?