2x+y=4
2·6+(−8)=?4
12−8=?4
4=4
What do you substitute for x and y in the first eq...
![subject](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 22:20 cedricevans41p4j3kx
2x+y=4
2·6+(−8)=?4
12−8=?4
4=4
What do you substitute for x and y in the first equation?
Substitute 6 for x and −8 for y in the first equation.
Perform the multiplication first.
When the left side of the equation is simplified, a true statement results.
x+3y=−20
6+3·(−8)=?−20
6−24=?−20
−18≠−20
What do you substitute for x and y in the second equation?
Substitute 6 for x and −8 for y in the second equation.
Perform the multiplication first.
When the left side of the equation is simplified, a false statement results.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00, sophiawatson70
Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30, rwbrayan8727
Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.
Answers: 2
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30, gungamer720
Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?
Answers: 1
You know the right answer?
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 05.10.2019 10:30
![Konu](/tpl/images/cats/en.png)
English, 05.10.2019 10:30
![Konu](/tpl/images/cats/geografiya.png)
Geography, 05.10.2019 10:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.10.2019 10:30
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 05.10.2019 10:30
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)