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
mars1129 [50]
4 years ago
13

X + y = 6 x - y = 8 Solve the system of equations.

Mathematics
2 answers:
MatroZZZ [7]4 years ago
4 0

Answer:

x=7

y=-1

Step-by-step explanation:

When the two equations are solved together, they form simultaneous equations.

x+y=6

x-y=8

Let us use the elimination method. if we add the two equations, we eliminate y.

2x=14

x=7

Let us substitute for the value of x obtained above.

x-y=8

7-y=8

y=7-8

y=-1

dusya [7]4 years ago
4 0
The answer to this question is y=-1
You might be interested in
Name the line and plane shown in the diagram. I will make you a brainllest
wolverine [178]

Answer:

see below

Step-by-step explanation:

The line is AB with ↔ over it

The Plane requires 3 letters not all in a line

The plane name is ABD

3 0
4 years ago
Which answer choice gives the correct explanation for this problem?
brilliants [131]
Im pretty sure the answer is a, sorry if its incorrect.
3 0
3 years ago
Read 2 more answers
Show all work to solve the equation for x. If a solution is extraneous, be sure to identify it in your final answer.
IRISSAK [1]

Answer:

There is one extraneous solution at x = 4

The only solution is x=7

Step-by-step explanation:

Given:

The equation to solve is given as:

\sqrt{x-3}+5=x

In order to solve, we will first isolate the radical part.

<em>Adding -5 on both the sides, we get:</em>

\sqrt{x-3}+5-5=x-5\\\sqrt{x-3}=x-5

<em>Now, squaring both the sides, we get:</em>

(\sqrt{x-3})^2=(x-5)^2\\\\x-3=x^2+25-10x\\\\x^2-10x-x+25+3=0\\\\x^2-11x+28=0\\\\(x-4)(x-7)=0\\\\x=4\ or\ x=7

Now, let us check whether the calculated values satisfy the equations or not.

Plug in 4 and 7 for 'x' and check the value of the equation.

At x=4,

\sqrt{4-3}+5=4\\\sqrt1+5=4\\1+5=4\\6=4

But, 6 is not equal to 4 and hence 4 is not a solution to the given equation. It is an extraneous solution for the given equation.

Now, at x=7

\sqrt{7-3}+5=7\\\sqrt4+5=7\\2+5=7\\7=7(True)

Therefore, x=7 is a solution to the equation.

Hence, there is one extraneous solution at x = 4

The only solution is x=7

6 0
4 years ago
Find the values for X
Goryan [66]

Answer

5

12/4=3

20/4=<u>5</u>

the value of x is 5

<u />

4 0
3 years ago
HELP!! 50 points !!
Alex73 [517]

Answer:2

234.234

Step-by-step explanation:

432

5 0
2 years ago
Read 2 more answers
Other questions:
  • Is 50 degrees celsius hotter than 50 degrees fahrenheit?
    7·1 answer
  • Type in expanded form. Use parentheses to indicate multiplication. 10^4
    12·2 answers
  • Use long division to write the fraction 2/9 as a decimal
    8·1 answer
  • 5+11n=13n help with this one too..
    6·2 answers
  • Chose the wrong name for this angle please
    15·2 answers
  • Which of the following is a polynomial?
    7·1 answer
  • PLEASE HELP ME 15 POINTS ILL HIVE BRAINIEST
    13·1 answer
  • If f(x) = 3x + 2 and g(x) = x^2 + 1, which expression is equivalent to (f . g)(x)?
    11·1 answer
  • Who wants to plays cold war​
    11·2 answers
  • What is 6 divided by 2 (1+2)<br><br> Pls help meee :)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!