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
ivanzaharov [21]
2 years ago
8

Solve this equation with substitution method :- x+5 = 3 (y+5) x-5 = 7 (y-5)

Mathematics
1 answer:
Damm [24]2 years ago
5 0
From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40
You might be interested in
Can someone please help​
jeka57 [31]
16/5is the answer I hope it helpssssdnfjdksps
7 0
2 years ago
If b/a=c/b=d/c=2/3, find a:b:c:d. (Please help e-e)
Ymorist [56]
The answer is a 3 b 5 c8 d4
7 0
2 years ago
Read 2 more answers
Solve the formula s=4pi r^2 for r
andrew11 [14]

Answer:

The formula to find the surface area of a sphere is to take the radius of the sphere and square it and multiply that amount by pi and then multiply that by 4. This is written algebraically as S=4πr2, where S is the surface area, r is the radius, and the value of π is 3.14.

7 0
2 years ago
I need the answer to this fast<br> Please
jeyben [28]
The initial function is slope

=> slope = 7-1/6-0 = 6/6 = 1

Hope this helps you :)
5 0
2 years ago
Evaluate the expression 4+−4√2+−1√ and write the result in the form a+bi.
castortr0y [4]

In the expression, the real number a equals 12 and the real number b equals -16.

<h3>How to explain the information?</h3>

It should be noted that the expression given is:

= (4 - 2i)²

Therefore, we need to expand the expression. This will be:

= (4 - 2i)(4 - 2i)

= 16 -8i -8i + 4i²

= 16 -16i +4i²

Substitute -1 for i²

= 16 - 16i + 4(-1)

= 16 - 16i - 4

= 12 - 16i

Therefore, the value of the expression is 12 - 16i.

Learn more about expressions on:

brainly.com/question/723406

#SPJ1

Evaluate the expression ( 4 − 2 i )² and write the result in the form a + b i.

8 0
2 years ago
Other questions:
  • Help with number 2 pls
    7·2 answers
  • Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
    6·2 answers
  • Which Statement is true about this right angle?
    14·1 answer
  • The function 3(2)t models the number of leaves on a plant, where t represents the number of weeks since it was planted. Which st
    12·1 answer
  • 2.2x + 2.2 / 4= 1.1 ​
    6·2 answers
  • Find the measure of each angle indicated.<br> 23°<br> 128°
    12·1 answer
  • Giving brainliest 3x^{2} -5x-2=0
    10·2 answers
  • How many ways can someone purchase at least one CD from a group of 5
    5·1 answer
  • Question 2: SQUARE ROOTS
    5·1 answer
  • What is the expression value of 10?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!