Question

Diketahui sistem persamaan x-2y=8 dan 2x-3y=13. tentukan nilai dari 3x+2y thanks:)

Answer 1

X - 2y = 8
2x - 3y = 13

x - 2y = 8
2x - 4y = 16

2x - 4y = 16
2x - 3y = 13_-
-y = 3
y = -3

x - 2y = 8
x - 2(-3) = 8
x + 6 = 8
x = 2

3x + 2y = 3(2) + 2(-3)
= 6 - 6
= 0

Answer 2

X-2y =8        kali 3
2x-3y =13     kali 2 agr angka dpn y sama yaitu 6
 3x - 6y =16
2x- 6y = 26 di kurangi 
1x = 10
x= 10
(10) - 2y = 8 yg dlm kurung sama dg (x)
-2y =8 -10
-2y = -2
y= 1

3x + 2y
3 kali 10 + 2 kali 1
30 + 2 =32