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
Xelga [282]
3 years ago
5

-2x+1=7 how do I do this?

Mathematics
2 answers:
Agata [3.3K]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

Write the equation down, the first step is to minus the one from both sides of the equal sign(since it’s the opposite then adding) so you cancel out the 1 and do 7-1 your equation would look like this : -2x=6 the next step is to divide the -2 (it’s the opposite of multiplication) your answer would be x=-3

ivanzaharov [21]3 years ago
5 0

Answer: x=-3


Step-by-step explanation: -2x+1=7

-2x=7-1

-2x=6

-2x/-2=6/-2

X=-3


You might be interested in
PLEASE ANSWER ASAP
mote1985 [20]

Answer:

y = 2(3)^{x}

Step-by-step explanation:

For the exponential function in the form

y = ab^{x}

Use ordered pairs from the table to find a and b

Using (0, 2 ), then

2 = ab^{0} ( b^{0} = 1 ) , thus

a = 2, so

y = 2b^{x}

Using (1, 6 ) , then

6 = 2b ( divide both sides by 2 )

b = 3

Thus the exponential function is

y = 2(3)^{x}

8 0
3 years ago
Three times the difference of eight and twice a number is five times the number.
Softa [21]

Answer:

24

Step-by-step explanation:

3(2n-8)=5n distribute 3

6n-24=5n combine like terms

-24=-n divide by -1 on both sides

24=n

n=24

7 0
3 years ago
Y= (x-9) (x+3)
juin [17]

Answer:

y = x² − 6x − 27

Step-by-step explanation:

To distribute, you can use something called FOIL.  It stands for First, Outer, Inner, Last.

First, multiply the First term in each factor.

x · x = x²

Now multiply the Outer terms in each factor.

x · 3 = 3x

Next multiply the Inner terms in each factor.

-9 · x = -9x

Finally, multiply the Last terms in each factor.

-9 · 3 = -27

Add them all up:

x² + 3x − 9x − 27

x² − 6x − 27

4 0
3 years ago
A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot
Bad White [126]

Answer:

Width 150 meters.

Length = 350 meters.

Step-by-step explanation:

Let us assume the  width of  the fence = k meters

So, both sides = k + k = 2k meters

Also, the TOTAL fencing length = 600 m

So, the one side length of the fence = (600 - 2 k) meters

AREA = LENGTH x WIDTH

⇒ A(k)  = (600 - 2k) (k)

or, A =  -2k² + 600 k

The above equation is of the form: ax² +bx +  C

Here: a  = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

Here, x value is given as:  x = \frac{-b}{2a}

Solving for the value of k similarly, we get:

k = \frac{-b}{2a}  = \frac{600}{2(-2)}  = 150

Thus the desired width = k = 150 meters

So, the desired dimensions of the plot  is width 150 meters.

And length = 650 - 2k = 650 - 300 = 350 meters.

5 0
3 years ago
I’m confused on how to answer this question. I provided a picture above. pls help!!
inna [77]

Answer:

4

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Other questions:
  • What is the graph of the absolute value equation y=|x-5|-4
    6·2 answers
  • Choose the most appropriate name for the function described below.
    6·2 answers
  • YOU WILL BRAINLIST ALSO 47 POINTS!!!
    8·1 answer
  • The functions fand g are defined as follows.
    7·1 answer
  • Let ​ f(x)=x+2 ​ and ​ g(x)=<img src="https://tex.z-dn.net/?f=%202%5E%7Bx%7D%20" id="TexFormula1" title=" 2^{x} " alt=" 2^{x} "
    12·1 answer
  • Help me with this question
    11·1 answer
  • Equivalent expressions for 7x-6x+4x
    11·1 answer
  • Graph the linear equation.<br><br><br> y+4=25(x−3)
    14·1 answer
  • Help plssssssssss I don’t wanna fail
    8·1 answer
  • Congruent triangles:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!