GreysynJ582374 GreysynJ582374
  • 03-11-2022
  • Mathematics
contestada

Solve by using Substitution: 3x-y=13 2x +2y = -10

Respuesta :

AerinV186121 AerinV186121
  • 03-11-2022
[tex]\begin{gathered} 3x-y=13 \\ 2x+2y=-10 \\ y=3x-13 \\ \\ 2x+2(3x-13)=-10 \\ 2x+6x-26=-10 \\ 8x-26=-10 \\ 8x=-10+26 \\ 8x=16 \\ x=\frac{16}{8} \\ x=2 \\ \\ 3x-y=13 \\ 3(2)-y=13 \\ 6-y=13 \\ -y=13-6 \\ -y=7 \\ y=-7 \end{gathered}[/tex]

Answer Link

Otras preguntas

Jerome is hoping for a rainstorm. Which of the following weather intruments can tell him if a storm is coming? HINT: THERE IS ONE ANSWER I WILL GIVE BRAINLIEST
Explain the consequences for reproduction it a sperm cell did nothave head​
Simplify fully 50y3/ 8xy2​
The map below highlights metals and their origination. Why was it important to barter with one another?
suppose someone argues that biological studies are important for anthropology​
Which ones match jendndkdnd
my ec'ole parragraph in french​
Can someone help my little sister with her quiz? She gotta have it turned in by midnight!! So we need answers asap!!
person places $123 in an investment account earning an annual rate of 2.8%, compounded continuously.
I have worms coming out of my poop and I think there is a lot in my stomach? Any Ideas what this could be? Please help.​