1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maxonik [38]
3 years ago
7

3x = 21, then x = ? please help i dont really understand and te answer choices are 7, 18, 6

Mathematics
2 answers:
Oliga [24]3 years ago
8 0

if 3x = 21 all you have to do is divide both sides of the equation by 3

3x = 21

3x divided by 3 is x, and 21 divided by 3 is 7

so then you get x = 7

Anna [14]3 years ago
6 0

Answer:7

Step-by-step explanation:

Because 3x7=21.

You might be interested in
Simplify.
Dafna11 [192]

Answer:

C. 2x^2-7x+7

Step-by-step explanation:

(3x^2-2x+2)-(x^2+5x-5)     <em>Given</em>

From the given you will subtract like terms from both parenthesis.

3x^2-x^2=2x^2

-2x-5x=-7x

2-(-5)=7                      

6 0
2 years ago
Leo makes a cake by mixing flour, eggs and sugar in the ratio 5 : 3 : 2. If he uses 120 g of sugar, what weight of eggs will he
Verdich [7]

Answer:

180g of eggs

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Compute the sum of all nine 2-digit numbers with a ones digit of 6.
serg [7]

Answer: 504

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The area of a rectangle is 72 cm square. The length of the rectangle is 6 cm longer than the width. What is the width of the rec
tangare [24]
The answer is B: 6 cm. You can use guess-and-check method, and plug the possible different answers into the equation x(x+6)=72, x stands for the width.
4 0
3 years ago
Elijah has saved $10. He wants to buy shoes for $14. That would make his money situation to be.
murzikaleks [220]
I guess he needs to save $4 more to buy the shoes
6 0
3 years ago
Other questions:
  • If the total pay for 7 hours is87.50, what is the hourly rate
    15·1 answer
  • The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at
    9·2 answers
  • What does x equal in x+4=2x-3
    12·1 answer
  • 4x +8=2x + 3x +3 solve for x
    13·1 answer
  • Please help, thank you.<br><br> The question is in the picture
    9·2 answers
  • a candy is packaged in a box the shape of a square pyramid. How many faces does the container have? how many edges and vertices
    6·1 answer
  • Good Luck! I might give Brainliest.
    12·1 answer
  • When Katy planted a large bush in her garden, it was 4 feet tall. Now it is 75% taller. How tall is the bush now?
    5·1 answer
  • Which congruence rule is the triangle.<br> ex. SSS, SAS, ASA, etc
    8·1 answer
  • PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!