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.
解下列方程.
x+63=248x-12.7=2.7x÷5=0.169x=6.3.
(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.