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
torisob [31]
3 years ago
5

What is the value of n when 7n-3=5n+5​?

Mathematics
2 answers:
sp2606 [1]3 years ago
6 0

Answer:n=4

Step-by-step explanation:

7n-3=5n+5

subtract 5n from both sides

2n-3=5

add 3 to both sides

2n=8

divide both sides by 2

n=4

BartSMP [9]3 years ago
3 0
N=2
i think because you can’t subtract a number with a variable. they both have to have the same variable.

so 7n-5n= 2
You might be interested in
What is<br> The equation of the line that passes through the points (5,-1) and (4,-5)
Murljashka [212]

For this case we have that by definition, the equation of the line in the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have two points through which the line passes:

(x_ {1}, y_ {1}) :( 5, -1)\\(x_ {2}, y_ {2}) :( 4, -5)

We found the slope:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-5 - (- 1)} {4-5} = \frac {-5+ 1} {- 1} = \frac {-4} {- 1} = 4

Thus, the equation is of the form:

y = 4x + b

We substitute one of the points and find b:

(x,y):(5,-1)\\-1=4(5)+b\\-1=20+b\\-1-20=b\\b=-21

Finally, the equation is:

y = 4x-21

Answer:

y = 4x-21

4 0
3 years ago
Please answer and i have to show work
stealth61 [152]

Answer:

B

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to \frac{3}{2}

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (3, 2) and (x₂, y₂ ) = (r, - 4)

m = \frac{-4-2}{r-3} = \frac{-6}{r-3} , then equating gives

\frac{-6}{r-3} = \frac{3}{2} ( cross- multiply )

3(r - 3) = - 12 ( divide both sides by 3 )

r - 3 = - 4 ( add 3 to both sides )

r = - 1 → B

4 0
3 years ago
Some people advised that in very cold​ weather, you should keep the gas tank in your car more than half full. ​irene's car has 6
Angelina_Jolie [31]

Answer:

irene spent $23.45

Step-by-step explanation:

Cost of gas = $3.50 per gallon = 350 cents

Quantity of  gas = 6.7 gallons

Amount spent = Cost * Quantity

Amount = 350 * 6.7

Amount = 2345 cents

Amount = $23.45

3 0
3 years ago
What is the one’s place digit in the cube root of 1728 ?
Lady_Fox [76]

Step-by-step explanation:

2 is the number which is in the ones place digit in the cube root of 1728..

5 0
3 years ago
Read 2 more answers
Help ASAP :) Brainly given + Thanks
horrorfan [7]

Answer:

80 sqcm

Step-by-step explanation:

area of the full rectangle is 96 sqcm (12x8) and then you subtract the area of the cutout (4x4)

8 0
2 years ago
Read 2 more answers
Other questions:
  • Spinner A has 6 orange slices and 9 yellow slices. all slices are the same size. ​
    14·1 answer
  • For the differential equation 3x^2y''+2xy'+x^2y=0 show that the point x = 0 is a regular singular point (either by using the lim
    7·1 answer
  • Perimeter of a rectangle with these dimentions w--12 l--10
    11·1 answer
  • Find the value of y that corresponds to x = –4 in the graph of the equation 2x + 3y = 13.
    6·1 answer
  • What is 2/3+1/6= in a fraction plz
    11·1 answer
  • Please help. Will give brainliest.
    8·2 answers
  • The ratio x : y is equal to 2 : 5, and y is 80% of z. Write an equation to represent the proportional relationship between x and
    8·1 answer
  • Simplify -4 1/2 + 3 1/4
    5·1 answer
  • Which inequality is shown in this graph?
    14·1 answer
  • A line passes through (5,-2) with a slope of 1/4. Write the equation in slope-intercept<br> form.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!