Question

Kamila🐺

haloo, yaampun minta tolong terus😓😓 boleh bantu aku jawab ini??

c. 3x + 3 = 3y d. 5x = 4y + 8
2x – 6y = 2
3y = 3x – 3
-

spldv kelas8 eliminasi substitusi

Answer 1

Kalila

c. 3x + 3 = 3y --> 3x - 3y = -3 (x2)
2x - 6y = 2 (x1)

6x - 6y = -6
2x - 6y = 2
--------------- -
4x = -8
x = -2

2x - 6y = 2
2 x -2 - 6y = 2
-4 - 6y = 2
- 6y = 2 + 4
-6y = 6
y = -1

d. 5x = 4y + 8 --> 5x - 4y = 8 (x3)
3y = 3x - 3 --> 3x - 3y = 3 (x4)
15x - 12y = 24
12x - 12y = 12
------------------- -
3x = 12
x = 4

5x = 4y + 8
5 x 4 = 4y + 8
20 - 8 = 4y
12 = 4y
y = 3

Semoga membantu.

Kamila🐺

makasih yaa

Kalila

iya,,, sama-sama semangat terus ya belajar nya