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

jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music
What value of x makes the equation true ? 4(2x-4)=16
What value of x makes the equation true ? 4(2x-4)=16
What value of x makes the equation true ? 4(2x-4)=16
jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music
jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music
find the circumference of a circle whose radius is 15.4cm
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times
What value of x makes the equation true ? 4(2x-4)=16
What value of x makes the equation true ? 4(2x-4)=16