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
Alina [70]
3 years ago
15

How many solutions does this equation have? (15x + 21) / 3 = 5x + 7

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

3*(5*x-7)-(15*x-21)=0

Step-by-step explanation:

3 • (5x - 7) -  (15x - 21)  = 0

Step  2  :

Equation at the end of step  2  :

 0  = 0

Step  3  :

Equations which are always true :

You might be interested in
Write the equation of the line that has a y-intercept of (0,4) and a slope of 2.
GuDViN [60]

Answer:

y=2x+4

Step-by-step explanation:

the y-intercept is the y value of the point given. in the slope form, 2 would be your m

3 0
3 years ago
Round 2.8962 do not add extra zeros
yaroslaw [1]

Answer:

2.9

Step-by-step explanation:

It just is

6 0
3 years ago
Read 2 more answers
Simplify. 5x^3/(7x^3+x^4)
Mashutka [201]
Hello,

\frac{5 x^{3} }{7 x^{3} + x^{4} } = \frac{5 x^{3} }{x^{3}(7+x) }=\frac{5} {7+x}

Answer Almost A with parenthesis 

5/(7+x)


6 0
3 years ago
Bhavik bought 333 liters of milk and 555 loaves of bread for a total of \$11$11dollar sign, 11. A month later, he bought 444 lit
AnnZ [28]

Let the price of 1 litre of milk be  x$

Let the price of 1 loaf of bread be y$

According to the problem

333x + 555y =11

444x+444y=10

On subtracting the two,

We get

(333x+555y=11) * 444

(444x+444y= 10) * 333

(-)     (-)         (-)

147852x + 246420y =4884

147852x + 147852y = 3330

(-)            (-)                  (-)

------------------------------                   

 98568y = 1554     

           y = 1554/98568     

              = 0.0157$          

                 =0.02$    

Price of 1 loaf of bread= 2 cents    

On putting the value of y 

333x + 555*0.0157 = 11333x  + 8.7135 = 11333x = 2.2865x = 2.2865/333x = 0.00068$   = 0.01$

Price of 1 litre of milk = 1 cent

1.5


6 0
3 years ago
-2(3x+2) is greater than or equal to -6x-4
olchik [2.2K]
The inequality would look like this:

-2 (3x + 2)\geq-6x-4

To begin to find the solutions, distribute the -2 throughout the set of parenthesis on the left side of the inequality by multiplying the -2 by each term in the set of parenthesis

-2 x 3x = -6x
-2 x 2 = -4

-6x -4 \geq-6x-4

Begin to isolate x by performing the opposite operation of adding -6x on both sides of the inequality

0x -4 \geq-4

Next perform the opposite operation by adding 4 on both sides of the inequality

0x \geq 0

Now, I'm not exactly understanding how that can possibly work. So, I guess I didn't really help you. But add a comment so that we can talk about the problem :)
8 0
3 years ago
Other questions:
  • Mr. Walker gave his class the function f(x) = (x + 3)(x + 5). Four students made a claim about the function. Each student’s clai
    14·2 answers
  • Simplify radical of 27
    15·1 answer
  • Select all the conversions that are
    9·1 answer
  • How do i solve 5x +100=10x
    5·2 answers
  • What is the first error Holden made in his proof?
    7·2 answers
  • Find an equation of the line having the given slope and containing the given point.
    9·1 answer
  • What is reminder if you devide 786 to 6?​
    6·1 answer
  • What is 6% of 90? Helpp​
    12·1 answer
  • Please help me
    15·2 answers
  • Please please help *image attached* it’s ap calc ab
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!