chcs chcs
  • 16-10-2020
  • Mathematics
contestada

If x + 2y = 8, and x - y = 5, what is the value of x?

Respuesta :

Lucyheartfilia0415
Lucyheartfilia0415 Lucyheartfilia0415
  • 16-10-2020

Answer:

x = 6

Step-by-step explanation:

Let's solve y for x + 2y = 8.

x + 2y = 8

2y = -x + 8

y = [tex]-\frac{1}{2}[/tex]x + 4.

Let's solve y for x - y = 5.

x - y = 5

y = x - 5

Since both equations have been solved for y, we can combine them together into one!

x - 5 = [tex]-\frac{1}{2}[/tex]x + 4

x [tex]+ \frac{1}{2}[/tex]x = 4 + 5

1.5x = 9

x = 6

Hope this helped! If not, please let me know!

Answer Link

Otras preguntas

One problem that may result when a nation imports more than exports is? a)taxes on imports b)high unemployment c)falling government revenues d)low prices on imp
A number divided by 6 is 18
how is jrotc different today from 100 years ago
A cyclist travels 3km in 10min what's his speed in km/h
8912 butterflies on one branch they estimate 1000 times as large. How many butterflies were at the site in all?
As one moves further from the center fo the circle, what happens to the interpretation?
What is a trains average speed if it travels 225 kilometers in 2.5 hours
What is the sum of 56+64 writen as the product of its gcf and another sum
How many grams are in 1.48 x 10^7 micrograms
Which of the following settings best represents the setting of a gothic work? Modern office building Ancient castle in ruins Apartment in the city Mansion in th