1.368+1.722-(3.725+3.160)÷15

3.090-(6.885:15)=3.090-459=2.631

1.368 + 1.722 - (3.725 + 3.160) ÷ 15 =..
= 1.368 + 1.722 - 6.885 ÷ 15
= 1.368 + 1.722 - 459
= 3.090 - 459
= 2.631

smoga brmanfaat.