lovelyfordayzp67wo2 lovelyfordayzp67wo2
  • 04-04-2018
  • Mathematics
contestada

what is the solution of the system? use substitution. 5x - y =3 6x - y=8

A. 1, -8
B. 5,22
C. 11,-2
D.5/6, 3/8

Respuesta :

Аноним Аноним
  • 04-04-2018
5x - y = 3 ------------ (1)
6x - y = 8 ------------ (2)

From (1):
5x - y = 3
y = 5x - 3 ------------ Sub into (2)

6x - (5x - 3) = 8
6x - 5x + 3 = 8
x + 3 = 8
x = 5 ------------------- Sub into (1)

5x - y = 3
5(5) - y = 3
25 - y = 3
y = 25 - 3
y = 22

---------------------------------
Ans: x = 5, y = 22
---------------------------------

Answer Link

Otras preguntas

Tyrone measured the floor of his rectangular storage unit. It is 3 feet wide and 8 feet from one corner to the opposite corner. How long is the storage unit? If
pls help, and explain. will give brainliest
A superhero is a type of character found in comic books. Which three words are academic
NEED HELP ASAP WILL MARK BRAINLIEST
Which is the product of (x - 5)2? A. x2 - 10x - 25 B. x2 - 10x + 25 C. x2 + 10x +25 D. x2 + 10x -25
if you need to learn first skill what you prefer read or write​
When Bethany saw Timmy before her surgery, what did she say over and over?
Tim won't eat any food _____________himself.​
May anyone help me with this
HELP 1. Yo ___ la guitarra el mes pasado. (tocar, preterite) 2 Mis hermanos pequeños ___ muy tarde. (dormirse, preterite) 3. La semana pasada, mis amigos y yo _