Tolong ya teman teman, ………………….​

Jawab: x = 14

LKM = 29

MKN = 61

Penjelasan dengan langkah-langkah:

4x + 5 + 2x + 1 = 90

6x + 6 = 90

6x = 90 – 6

6x = 84

x = 84/6

x = 14

LKM = 2x + 1

LKM = 2(14) + 1

LKM = 28 + 1

LKM = 29

MKN = 4x + 5

MKN = 4(14) + 5

MKN = 56 + 5

MKN = 61