问题
解答题
破解密码
x+230=660
x÷0.25=1
Χ-162=189.
答案
(1)x+230=660,
x+230-230=660-230,
x=430;
(2)x÷0.25=1,
x÷0.25×0.25=1×0.25,
x=0.25;
(3)X-162=189,
X-162+162=189+162,
X=351.
破解密码
x+230=660
x÷0.25=1
Χ-162=189.
(1)x+230=660,
x+230-230=660-230,
x=430;
(2)x÷0.25=1,
x÷0.25×0.25=1×0.25,
x=0.25;
(3)X-162=189,
X-162+162=189+162,
X=351.