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

What produces the largest amount of federal revenue in the United States? A. individual income tax B. corporation income tax C. estate taxes D. excise taxes
Simplify 6 - (-2) - 3(-5). -11 -7 19 23
Over the weekend, the All Smiles Run had 16,478 participants for the Half Marathon. The All Smiles 10K had 6,924 participants, and the 5-Mile Walk had 3,067 par
round each decimal to the nearest whole number 30.92
How is the process of dividing integers similar to the process of multiplying integers
True or false? Four eighths is equal to five twelves?
at a concession, stand seven hotdogs and two hamburgers cost $12.75; two hot dogs and seven burgers cost $16.50. find the cost of one hot dog and one burger.
what is 216÷18 using base ten blocks
A teacher had 24 red pens. If the ratio of red pens to blue pens she owned was 8:7, how many pens did she have total
The main trade route that connected China with Rome was called the _____. Satin Road Silk Road Han Road Roman Road