tentukan hasil dari a.5 dikali (15-6)= b.12 dikali(-7)+(16)-(-2)= c-15-(-3)-7dikali(-4)= D.(1+2-3dikali4)dikali(9dikali7(7-8)-(6+5)

a. 45
b. 108
c. 76
d. 0

a) 5 x (15 - 6) = 5 x 9 = 45

b) 12 x (- 7 + 16 + 2) = 12 x 11 = 132

c) (- 15 + 3 - 7) x - 4 = - 19 x - 4 = 76

d) (1 + 2 - 3 x 4) x (9 x 7(7 - 8) - (6 + 5))
= - 9 x (9 x - 1 - 11)
= - 9 x - 20
= 180