Question

Please dijawab, butuh kali besok, pleasee

Answer 1

Verified answer

Mapel Matematika
Bab SPLDV

(x - 1)/6 + y = 6
((x - 1) + 6y) / 6 = 6
x - 1 + 6y = 36
x + 6y = 37...(1)

x + (y - 1)/4 = 8
(4x + (y - 1)) / 4 = 8
4x + y - 1 = 32
4x + y = 33...(2)

Eliminasi persamaan (1) dan (2)
x + 6y = 37 (x4)
4x + y = 33

4x + 24y = 148
4x + y = 33
--------------------- -
23y = 115
y = 5

x + 6y = 37
x + 6(5) = 37
x = 7

Answer 2

Verified answer

6= (x - 1)/6 + y
6= ((x - 1) + 6y) / 6
36= x - 1 + 6y
37= x + 6y
37= (1)

8= x + (y - 1)/4
8= (4x + (y - 1)) / 4
32= 4x + y - 1
33= 4x + y
33 = (2)

Metode eliminasi
37 (×4)= x + 6y
33= 4x + y

4x + 24y = 148
4x + y = 33
--------------------- -
23y = 115
y = 5

x + 6y = 37
x + 6(5) = 37
x = 7