hasil operasi [7+(-1×3)]+7-20 adalah

[7 + (-3)] + -13
4 + -13
-9

moga membantu

Utamakan yg didalam kurung dulu

[7 + (-1 × 3)] + 7 - 20
= [7 + (-3)] - 13
= (7 - 3) - 13
= 4 - 13
= -9