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
Darya [45]
3 years ago
15

If 6x + 4 = 11x - 21, what is the value of x?

Mathematics
2 answers:
lianna [129]3 years ago
8 0
X=5

Explanation: 6x + 4 = 11x - 21
1). Subtract 4 from both sides and you will get 6x = 11x -25.
2). Subtract 11x from both sides and you should get -5x = -25.
3). Divide the -5 with -25 to get x alone and you should get X=5!

Check your work:
6(5) + 4 = 34 & 11(5) - 21 = 34
34=34.
WITCHER [35]3 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

11x - 6x = 4 + 21

5x = 25 (÷5)

x = 5

You might be interested in
Sela's piano lesson starts at 4:45pm. The lesson is 30 minutes long.<br> When does her lesson end
nalin [4]

Answer:

The lesson ends at 5:15 pm.

4 0
2 years ago
Read 2 more answers
Write as a decimal 3 hundreds and 109 hundredths
8090 [49]
<span>300.0109
I hope this helps
300=3 hundreds

.0109= 109 hundredths</span>
6 0
3 years ago
What is the equation of a horizontal line that passes through the point (3,-5)?
Kryger [21]

your answer for this question is y=c hope this helps

5 0
2 years ago
How to solve using substitution<br> y=3/4X+5<br> 4x-3y=-1
Pachacha [2.7K]
Please, use parentheses to enclose each fraction:
y=3/4X+5 should be written as <span>y=(3/4)X+5

Let's eliminate the fraction 3/4 by multiplying the above equation through by 4:

4[y] = 4[(3/4)x + 5]
Then 4y = 3x + 20
(no fraction here)

Let 's now solve the system   

4y=3x + 20
4x-3y=-1

We are to solve this system using subtraction.  To accomplish this, multiply the first equation by 3 and the second equation by 4.  Here's what happens:

12y = 9x + 60  (first equation)
16x-12y = -4, or -12y = -4 - 16x (second equation)

Then we have 

 12y = 9x + 60
-12y =-16x - 4

If we add here, 12y-12y becomes zero and we then have 0 = -7x + 56.
Solving this for x:  7x = 56; x=8

We were given equations   
</span><span>y=3/4X+5
4x-3y=-1

We can subst. x=8 into either of these eqn's to find y.  Let's try the first one:

y = (3/4)(8)+5 = 6+5=11

Then x=8 and y=11.

You should check this result.  Subst. x=8 and y=11 into the second given equation.  Is this equation now true?</span>
5 0
3 years ago
20 Point!
ludmilkaskok [199]

determinant: \sqrt{b^2-4ac}

(a) x^2+4x+5=0\\D=4^2-4\cdot1\cdot5={-4}\\D

D<0 means there are no real roots. there are two complex roots with imaginary components.

(b) D=16+20=36>0

D>0 means there are two real roots

(c) D = 20^2-4*4*25 = 0

D=0 means there is one real root with multiplicity 2


7 0
3 years ago
Other questions:
  • Show that 2x^2 + 7x + 7 is positive for all real values of x.<br> PLEASE HELP
    6·1 answer
  • What is the length of one leg of the triangle?
    13·2 answers
  • The graph of a line passes through the two points (-2, 1) and (2, 1). What is the equation of the line written in general form?
    14·1 answer
  • Find the sum of the infinite geometric series, if it exists. 4 - 1 + 1/4 -1/6 +....
    9·2 answers
  • 3 cards are drawn from a standard deck of 52 playing cards. How many different 3-card hands are possible if the drawing is done
    8·1 answer
  • Emilio used addition of two rational numbers to solve a problem. Jim use subtraction to solve the problem. Is it possible that t
    13·1 answer
  • Hey can you please help me posted picture of question :)
    5·1 answer
  • Simplify the expression: -3(h-4)-2(-6h+5) PLEASE HELPPP
    14·2 answers
  • Which equation is represented by the graph below?
    15·1 answer
  • I
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!