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24x + 7 = 180
24x = 173
x = 173/24
= 7,2
Sudut PQR = 7,2 x 9 + 3
= 67,8 derajat
Gak ada isinya
(9x + 3) + ( 15 x + 4) = 180
9x + 15 x = 180 - 3 - 4
24 x = 173
x = 7,2
PQR = 9x + 3
= 9 ( 7,2) + 3
= 67,8