问题 解答题

解下列方程.

x+63=248x-12.7=2.7x÷5=0.169x=6.3.

答案

(1)X+63=248,

X+63-63=248-63,

X=185;

(2)X-12.7=2.7,

X-12.7+12.7=2.7+12.7,

X=15.4;

(3)X÷5=0.16,

X÷5×5=0.16×5,

X=0.8;

(4)9X=6.3,

9X÷9=6.3÷9,

X=0.7.

单项选择题
单项选择题