jmpetrous jmpetrous
  • 19-05-2021
  • Mathematics
contestada

Solve the system of linear equations by substitution.

x=2y+7

3x−2y=3

Respuesta :

1483231 1483231
  • 21-05-2021

Answer: y--2/9

1 Substitute x=2y+7x=2y+7 into 3x-2y=33x−2y=3.

4y+21=3

4y+21=3

2 Solve for yy in 4y+21=34y+21=3.

y=-\frac{9}{2}

y=−

2

9

​

3 Substitute y=-\frac{9}{2}y=−

2

9

​

 into x=2y+7x=2y+7.

x=-2

x=−2

4 Therefore,

\begin{aligned}&x=-2\\&y=-\frac{9}{2}\end{aligned}

​

 

x=−2

y=−

2

9

​

​

Step-by-step explanation:

Answer Link

Otras preguntas

How do you think most people hold on to their faith? How do you hold on to yours?​
I need help simplifying this problem. Please and thank you! (2a^2-2b^2)/(√a+√b)​
prove mathematically that hexagonal system of layout accomodates approximately 16% more than square system of layout.​
The number is chosen at random from 1 to 25 find the probability of selecting an even number
2. The area of a rectangular plot is 2x2 + 5x + 3 and length (x+1). What is the width?pls help​
Are all odd numbers prime numbers? Explain
i need 1-3, 6,8, and 10
Algunos estudiantes _________ interés en aprender algún pasatiempo. A)tenemos B)tienen C)tiene D)tengo
ads 1. What is inclusive representation ? Explain ​
3. Which helps the body maintain a stable temperature? O heart rate and sweating sweating and shivering shivering and breathing breathing and heart rate