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

Which sentence does not contain any punctuation errors? A. It snowed all afternoon and, they stayed inside the house. B. It snowed all afternoon and so they st
The elements of the Periodic Table are arranged on order of increasing(1) atomic number (2) mass number (3) number of isotopes (4) number of moles
Which statement describes electrolysis? (1) Chemical energy is used to produce an electrical change. (2) Chemical energy is used to produce a thermal change. (3
Why doesn't the tribe trust Captain Orlov?
what is an equivalent decimal to 9/15
the thirteenth amendment to the U.S. constitution affected the lives of millions of African Americans by
Which species represents a chemical compound? (1) N2 (3) Na (2) NH4+ (4) NaHCO3
How do you solve x-y=1 ; x+y=3. Please Explain
Which substance is an Arrhenius acid? (1) LiF(aq) (3) Mg(OH)2(aq) (2) HBr(aq) (4) CH3CHO
State what happens to the potential energy of CO2 molecules during this phase change of CO2.