问题
填空题
若|a+8|+
|
答案
∵|a+8|+
=0,27-b
∴a+8=0,a=-8,27-b=0,b=27,
∴
-3 a
=3 -b
-3 -8
=-2-(-3)=1,3 -27
故答案为:1.
若|a+8|+
|
∵|a+8|+
=0,27-b
∴a+8=0,a=-8,27-b=0,b=27,
∴
-3 a
=3 -b
-3 -8
=-2-(-3)=1,3 -27
故答案为:1.