RumerT501924 RumerT501924
  • 03-11-2022
  • Mathematics
contestada

Estimate the solution to the system of equations-3x+3y=92x-7y=-14X=Y=

Respuesta :

AhvaL146203 AhvaL146203
  • 03-11-2022
[tex]\begin{gathered} -3x+3y=9,2x-7y=-14 \\ \text{ Now, for the first equation} \\ 3y=9+3x \\ y=3+x \\ \text{ Replacing that in the second equation} \\ 2x-7(3+x)=-14 \\ 2x-21-7x=-14 \\ -5x-21=-14 \\ -5x=-14+21 \\ -5x=7 \\ x=-\frac{7}{5} \end{gathered}[/tex][tex]\begin{gathered} \text{ Now, since }y=3+x \\ y=3-\frac{7}{5} \\ y=\frac{15-7}{5} \\ y=\frac{8}{5} \end{gathered}[/tex]

Thus x= -1.4 and y=1.6

Answer Link

Otras preguntas

8/100 in simplest form
Which represents a zinc mine on the map? A. orange triangle B. white triangle C. gray triangle
ax+by=c solve equation for y
A car rental company charges a daily fee, plus an additional fee for each mile driven. Susan rented a car for one day, drove 100 miles, and was charged $48.00.
help to solve   y'''-y''-4y'+4y=5-e^x+e^2x
Concerning what future events did Christ speak in Matthew 24? 1.)the destruction of the Temple 2.)world wars 3.)persecution of Christians 4.)false prophets 5.)t
Rewrite 79/10 as a mixed number
If all three riders travel for 3.5 hours at the same speed as their last ride, how many total miles will the 3 riders travel altogether?
In an after school program, students must choose to either play on the playground or read a book silently. On one cloudy day, 70% of the students chose to p
what is READING and WRITING ?