Solve the following system of equations: 8x+3y=7 133y=17 X=? Y=?
Question
8x+3y=7
133y=17
X=?
Y=?
2 Answer

1. User Answers imlittlestar
Answer:
x = 2 and y = 3
Stepbystep explanation:
It is given that,
8x + 3y =7 (1)
13x  3y =17 (2)
To find the value of x and y
eq(1) + eq(2) ⇒
8x + 3y = 7 (1)
13x  3y = 17 (2)
5x + = 10
x = 10/5 = 2
Substitute value of x in eq (1)
8x + 3y =7 (1)
8 * 2 + 3y = 7
16 + 3y = 7
3y = 7  16 = 9
y = 9/3 = 3
Therefore x = 2 and y = 3

2. User Answers carlosego
For this case we must solve the following system of equations:
[tex]8x + 3y = 7\\13x3y = 17[/tex]
If we add both equations we have:
[tex]8x + 13x + 3y3y = 717\\5x = 10\\x = \frac {10} {5}\\x = 2[/tex]
We find the value of the variable "y":
[tex]3y = 7 + 8x\\y = \frac {7 + 8x} {3}\\y = \frac {7 + 8 (2)} {3}\\y = \frac {716} {3}\\y = \frac {9} {3}\\y = 3[/tex]
Thus, the solution of the system is (2, 3)
ANswer:
(2, 3)