Kak please banget jawab nomor 6-8 pakai cara. Ini itu kek linear satu variabel. Please dijawab dikumpul sekarang

6.
6+4(5P+10)=86
6+4.5P+4.10 =86
6+20P+40 =86
46+40P=86
40P=86-46
40P=40
P=40/40
P=1

6. 6+4(5p+10) = 86
6+20p+40 = 86
20p = 40 [p = 2]
7. 3(4a-8)+24 = 36
12a-24+24 = 36
12a = 36 [a = 3]
8. 20c – 8(21c-16) = 3(2+c)
20c – 168c + 128 = 6 + 3c
-148c + 128 = 6 +3c
151c = 122
c = 122/151