chcs chcs
  • 16-10-2020
  • Mathematics
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If x + 2y = 8, and x - y = 5, what is the value of x?

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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!

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