nena426 nena426
  • 13-02-2021
  • Mathematics
contestada

Solve for the unknown in the equation
3(x-1)=21

Respuesta :

LeCoolKid
LeCoolKid LeCoolKid
  • 13-02-2021

Answer:

6

Step-by-step explanation:

The main idea of how to solve it is to isolate the variable. Whatever you multiply, divide, add, or subtract on one side, you must do the same to the other side so that both sides are equal.

3(x-1) = 21

3(x-1) / 3 = 21 / 3

x - 1 = 7

  + 1 + 1

x = 6

Answer Link
3di
3di 3di
  • 13-02-2021

Answer:

x = 8

Step-by-step explanation:

First distribute

then +3 to both sides

which becomes 3x = 21

then divide both sides by 3 to get X by itself  

Ver imagen 3di
Answer Link

Otras preguntas

(30 POINTS) HORTICULTURE HELP!!!!!!Which of the following is the term used to describe the chill-point at which a plant may survive, but will grow little if at
Plz help ASAP plz help ASAP
answer are A.8 B.10 C.40 D.34
What is the average kinetic energy (temperature) of sample A
Question 4 help me and i will give brainlist
Can somebody help me thank you.
Which expression is equivalent to 4 + 2(1 + 3.c)?
geometry- please help. like seriously if u know how to do it, it would help me so much and i’d mark u brainliest
What types of behaviors does the average customer exhibit
Type your response in the box. Determine a method other than graphing that could be used to solve this system of linear equations. Explain how to solve the syst