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
alexira [117]
3 years ago
5

Consider the following pair of equations:

Mathematics
1 answer:
Oksana_A [137]3 years ago
5 0
There is a special kind of substitution which some books call it by comparison.

When the two equations are both 
y=some function of x
y=some other function of x, then
we can substitute the second equation into the first giving
some function of x = some other function of x and start solving.

For example,
<span>y = –2x + 8 
y = x – 1
substitute second into first
x-1=-2x+8
isolate x on left,
3x=9
x=3
second step is to substitute x=3 into second equation to get
y=x-1=3-1=2
Therefore the solution is (3,2)</span>
You might be interested in
Can you name Six congruent isosceles triangles? I really need help?
Digiron [165]
Six congruent isosceles triangles would be named as their letters (must be in order!) then isosceles.

Please message me!!
8 0
3 years ago
What is the value of 'x' in the equation shown below?<br> 2 (x + 8) - 4x = 10 x + 4
Nat2105 [25]

Answer:

x=1

Step-by-step explanation:

2x+16-4x=10x+4

-2x+16=10x+4

16-4=10x+2x

12=12x

1=x

5 0
3 years ago
Read 2 more answers
In parallelogram MATH, / and /. Find /.
Andre45 [30]
Can you explain more of what you're asking please or saying?

8 0
3 years ago
Erica wants to know how many books on average are in school libraries in her county. She randomly calls 50 school libraries in h
Rus_ich [418]
<span>valid. She used a representative sample
</span>because she correctly found the average and 18,000 is a reasonable number to get for a the problem
5 0
3 years ago
Read 2 more answers
5.6 by the power of negative 5 can someone tell me what that equals <br><br> PLZ HELP NOW
dmitriy555 [2]
0.00018157659
hope this helps you
8 0
2 years ago
Read 2 more answers
Other questions:
  • Pint-Sized Portraits has 6 different backgrounds and 3 poses in which to photograph children. How many different pictures are th
    15·2 answers
  • This question too please
    9·2 answers
  • Which of the statements below is true for the following set of numbers?<br>42,20,36,51.60.28​
    11·1 answer
  • What is the explicit formula for this sequence ? -7,-4,-1,2,5,...
    8·2 answers
  • Jupiter,Saturn or Uranus?
    12·1 answer
  • I need help with:
    6·1 answer
  • Alexandra is going to wrap the presents to give to her twin sisters for there birthday. How much wrapping paper will she need
    15·2 answers
  • How many 150 mL glasses can I fill with 5 bottles of soft drinks each hold 1.2 L​
    7·2 answers
  • EXERCISES
    6·1 answer
  • Which is the graph of f(x)=3√x
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!