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
Lunna [17]
2 years ago
15

What is the x-value of the solution to the system of equations?

Mathematics
1 answer:
ValentinkaMS [17]2 years ago
7 0

Answer:

The solution to the system of equations is:

x=4,\:y=-3

Step-by-step explanation:

Given the system of equations

5x + 4y =8

2x- 3y = 17

solving the system of equations

\begin{bmatrix}5x+4y=8\\ 2x-3y=17\end{bmatrix}

\mathrm{Multiply\:}5x+4y=8\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:10x+8y=16

\mathrm{Multiply\:}2x-3y=17\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:10x-15y=85

\begin{bmatrix}10x+8y=16\\ 10x-15y=85\end{bmatrix}

10x-15y=85

-

\underline{10x+8y=16}

-23y=69

\begin{bmatrix}10x+8y=16\\ -23y=69\end{bmatrix}

solve for y

-23y=69

Divide both sides by -23

\frac{-23y}{-23}=\frac{69}{-23}

y=-3

\mathrm{For\:}10x+8y=16\mathrm{\:plug\:in\:}y=-3

10x+8\left(-3\right)=16

10x-24=16

10x=40

Divide both sides by 10

\frac{10x}{10}=\frac{40}{10}

x=4

Thus, the solution to the system of equations is:

x=4,\:y=-3

You might be interested in
Please Help Me With This Question
irina1246 [14]

Answer:

4/4 quarters

Step-by-step explanation:

hope this will help you

7 0
2 years ago
Read 2 more answers
Johnathan plans on using 2" x 12" boards that cost $2.50 per foot. Assuming he can purchase the exact amount he needs, how much
Kitty [74]

Answer:

$35

Step-by-step explanation:

7 0
3 years ago
3(2x+1)-2(x+1) is the same as
Dahasolnce [82]

Answer:

4x + 1 and 6x - 2x - 2 + 3

Step-by-step explanation:

we can expand and find 2 equations that are the same as this

one being 6x+3 -2x -2

and another being 4x + 1

hope this helps!

5 0
1 year ago
Which of the following represents
stealth61 [152]

Answer:

The correct option is (c).

Step-by-step explanation:

The given number is -0.904.

We need to represent the number in scientific notation.

Any number can be written in scientific notation as follows :

a\times 10^b

Where

a is a real number and b is an integer

We can write it as follows :

-0.904=-9.04\times 10^{-1}

Hence, the correct option is (c).

6 0
2 years ago
Quadrilateral WILDWILDW, I, L, D is inscribed in circle O.
Rus_ich [418]

Answer:

abcyou

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Simplify the expression
    11·1 answer
  • What 2 numbers can you multiply to get 31? can 31 get into smaller groups?
    13·1 answer
  • A common way for two people to settle a frivolous dispute is to play a game of rock-paper-scissors. In this game, each person si
    12·1 answer
  • 2
    5·1 answer
  • a plumber has a piece of pipe that is 2 meters long he needs to cut it into section of 10 centimeters long how many sections wil
    6·2 answers
  • Find the value of x for which l || m?
    10·1 answer
  • I need to know how to solve this anyone?
    13·1 answer
  • What kind of graph is this
    8·1 answer
  • Find the area of the triangle
    9·1 answer
  • What's a 3 number multiplication that = 1000?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!