ginartista
ginartista ginartista
  • 04-03-2021
  • Mathematics
contestada

3x {+ 2y = 23
x {– 2y = 8

Respuesta :

rantwitheve
rantwitheve rantwitheve
  • 04-03-2021

Answer:

([tex]\frac{31}{4} , \frac{-1}{8}[/tex])

Step-by-step explanation:

use substitution:

3x+2y=23

x=2y+8

plug in 2y+8 for x

3(2y+8)+2y=23

distribute:

6y+24+2y=23

combine like terms:

8y+24=23

solve the equation:

y=-1/8

substitute -1/8 for y:

x=2(-1/8)+8

solve the equation:

x=31/4

Answer Link

Otras preguntas

the lengths of the sides of a triangle are in the ratio 5:6:7. describe the length of the longest side if the perimeter is less than 54cm
How do I find the chemical formula?
in a chemical reaction, a reaction blinds to an enzyme at a region known as the
What makes a good presentation
the lengths of the sides of a triangle are in the ratio 5:6:7. describe the length of the longest side if the perimeter is less than 54cm
The letters M, H, T, and A are written on a slip of paper. The four slips of paper are placed in a hat. The slips are then selected one at a time from the hat.
2[39/(16-12*4)+(9+6*3*7]
At 350 K what is the approximate volume? What will be the approximate volume when the temp is 900 K?
which is a correctly written sentence, not a run-on? a. the library has a good selection of books and movies we borrow some every week. b. the train left the st
why do scientists classify organisms?