Quadgirl2019 Quadgirl2019
  • 13-11-2018
  • Mathematics
contestada

find the solution of this system of equations -2x+8y=14 and -2x-2y=-26

Respuesta :

Аноним Аноним
  • 13-11-2018

Note that both equations contain -2x so if we subtract them this will disappear.

-2x + 8y = 14

-2x - 2y = -26       Subtract:-

0  + 10y = 40

y = 4

Substitute fro y in the first equation:-

-2x + 8(4) = 14

-2x = 14 - 32 = -18

x = 9


Answer x = 9   y = 4

Answer Link

Otras preguntas

Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
two methods of active transport
Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
Why did Henry Clay group his resolutions in pairs in the Compromise of 1850?
Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
how have computers changed mapmaking in recent years
What were the 4 major truths Jefferson presented in the declaration of independence?
2 ( 4a - 12 ) + 3a = 6a + 1
Your model locomotive is 18 inches long. It is an exact model of a locomotive that is 72 feet long. A window on the locomotive is how many times wider than a wi
2 ( 4a - 12 ) + 3a = 6a + 1