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

P is a 1st degree polynomial with 2 terms. Written in standard form, its coefficients (in order) are: -1 and 3. Q is a 1st degree polynomial with 2 terms. Writt
What is the value of p? A) 55 B) 45 C) 35 D) 125
The width of a rectangle measures (2.9s+3.8t) centimeters, and its length measures (6.4s−9.5t) centimeters. Which expression represents the perimeter, in centim
Why was the 15th Amendment seen as the end of the Abolitionist movement?
What is King Menes known for accomplishing? driving the Hyksos from Egypt establishing the Valley of the Kings overseeing construction of the Great Pyramid unit
Which rationale best describes why the functions are inverses? The functions intersect each other The functions have the same general curve. The functions are r
Can someone help me PLEASE!!!!
please no playing around i really need help asap i am getting timed!!! Caleb is an inventor who has designed a new kind of fishing net. He is looking for a stro
What is the average velocity of a bowling ball that moves down the lane 8 meters in 4 seconds?​
Sarah takes a 40 minute bus ride from home