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

What happened to Mohenjo-Daro and Harappa? (They're two ancient cities in ancient India)

how do you write fraction 9/10 as a decimaland how to convert fractions into decimals

what are some interesting facts about the great sandy desert?

A radio station transmits waves at a frequency of 120MHz an a speed of 300 million m/s. Calculate the wavelength.

What happened to Mohenjo-Daro and Harappa? (They're two ancient cities in ancient India)

what are some interesting facts about the great sandy desert?

write the equation in function form then graph it 5x-2y=6 thx to the ppl who help

write the equation in function form.then graph the equation x-3y=-9 ???

how did martinique gain independence

why did the citizens of Richmond, Virginia feel upset about the actions at Fort Sumter ?