根据方程的定义可得:
(1)8.2x×,
(2)3.2-x=0.5√,
(3)8÷2=4×,
(4)a×6×,
(5)8÷b=3√,
(6)a 3>b×,
(7)7x+3y=4.3√,
(8)x=9√,
(9)2.82=3-x√,
故答案为:×;√;×;×;√;×;√;√;√.
根据方程的定义可得:
(1)8.2x×,
(2)3.2-x=0.5√,
(3)8÷2=4×,
(4)a×6×,
(5)8÷b=3√,
(6)a 3>b×,
(7)7x+3y=4.3√,
(8)x=9√,
(9)2.82=3-x√,
故答案为:×;√;×;×;√;×;√;√;√.