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
Aleks04 [339]
3 years ago
15

Ax-by/c =d solve for x

Mathematics
1 answer:
wolverine [178]3 years ago
4 0
Answer: x = (cd + by) / a

Working out:

(ax - by) / c = d

1)Multiply by c on both sides to get:
ax - by = cd

2) Add by on both sides to get:
ax = cd + by

3) divide by a on both sides to get:
x = (cd + by) / a
You might be interested in
What is the radius for the circle given by the equation? 
alisha [4.7K]

Use:

(a-b)^2=a^2-2ab+b^2\qquad(*)

x^2+y^2-6y-12=0\ \ \ \ |+12\\\\x^2+y^2-6y=12\\\\x^2+y^2-2y\cdot3=12\ \ \ \ |+3^2\\\\x^2+\underbrace{y^2-2\cdot y\cdot3+3^2}_{(*)}=12+3^2\\\\x^2+(y-3)^2=21\\\\\boxed{k=3}

7 0
3 years ago
Solve the system of equations by substitution <br> 2x+3y=9 <br> y=x−2
garri49 [273]

so I think u you divide something and you times and then you multiply it

6 0
3 years ago
Read 2 more answers
12. Jenna bought books for $3 each and a game for $5. She spent a total of $26. How many books
blondinia [14]

Answer: 7 books

Step-by-step explanation:

Start by subtracting 26 and 5 which gives you 21

Then you want to divide 21 and 3 which leaves you with 7

4 0
3 years ago
A geometric progression has a third term of 20 and a sum of infinity which is 3 times the first term. Find the first term ​
Anna007 [38]

Answer: the first term is 45

Step-by-step explanation:

Step 1: The formular for the nth term is ar^n-1 and since we're solving for the third term ar^3-1 = ar² which is equal to 20

So ar²= 20 and we make this equation i

Step 2: the formular for the sum of infinity is Sn = a/(1-r) and according the question the sum of infinity is equals to 3 *A ( A means the first term)

Further simplification gives us

3a= a/(1-r)

We simplify Futher by multiplying both sides by (1-r)

3a.(1-r) = a/(1-r).(1-r)

3a(1-r)=a

= 3a-3ar=a

Make 3ar the subject of the formula

3ar= 2a and lets make this equation (ii)

Step 3: From the first equation since ar²=20, let's make a the subject of the formula by dividing both sides by r²

Ar²/r² = 20/r²

A=20/r²lets make this equation (iii)

Step 4: subtitle a as 20/r² into equation (ii)

Since 3ar=2a

Then 3.(20/r²).r = 2. 20/r²

= (60/r²) .r = 40/r²

60/r = 40/r2

Multiplying both sides by r² gives us

60r = 40

Divide both sides by 20 gives us

= 3r= 2

Divide both sides by 3 gives us

= r = 2/3

Step 5: substitute r for 2/3 in equation i

ar²= 20

a. (2/3)2 = 20

= a.4/9 = 20

= 4a = 180

= a = 180/4

a = 45

5 0
3 years ago
The diameter of a bike is 2 feet about how many revolutions does the wheel make to travel 2 kilometers
Artist 52 [7]
1,000 because kilometers is 1,000 is how many is for 2 but for one it's 500
4 0
3 years ago
Other questions:
  • $75 dinner; 18% tip <br> please help me!
    10·2 answers
  • The scale on a drawing is 1 mm = 3 m. How many meters does 2 centimeters represent?
    14·2 answers
  • Rodney bought a 25- pound bag of dog food . His dog ate 10 2/5 pounds of the food in the first month and 10 4/5 pounds of the fo
    8·2 answers
  • Given that (2x-1)(x+5)=2x^2-mx-5, what is the value of m​
    5·1 answer
  • This table gives a few (x, y) pairs of a line in the coordinate plane. What is the y-intercept of the line?
    7·1 answer
  • Solve the equation.
    12·2 answers
  • Which expression gives the same result as????​
    15·1 answer
  • The product of 2 mixed numbers that are each between 4 and 5 is between 16 and 25. true or false?
    10·1 answer
  • Taylor went shopping for a new camera. Sales tax where she lives is 4.5%. The price of the camera is $28. Find the total price i
    6·1 answer
  • If I made $20 in 4 hours, what is the rate at which I made money?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!