Hitunglah nilai dari 25-34-[42-(63-51)]

25 - 34 - [42 - (63 - 51)]
= 25 - 34 - [42 - (12)]
= (25 - 34) - 30
= -9 - 30
= -39

25-34-[42-(63-51)]
=25-34-[42-(63-51=12)]
=25-34-[42-12=30]
=25-34-30=(-9)-30
=(-39)
maaf kalo ada kesalahan !!