问题
解答题
求未知数x.
|
答案
①x×123=1845,
x×123÷123=1845÷123,
x=15;
②x+0.05=3.528,
x+0.05-0.05=3.528-0.05,
x=3.478;
③x-3.6=7.89,
x-3.6+3.6=7.89+3.6,
x=11.49;
④8064÷x=144,
8064÷x×x=144×x,
144x÷144=8064÷144,
x=56.
求未知数x.
|
①x×123=1845,
x×123÷123=1845÷123,
x=15;
②x+0.05=3.528,
x+0.05-0.05=3.528-0.05,
x=3.478;
③x-3.6=7.89,
x-3.6+3.6=7.89+3.6,
x=11.49;
④8064÷x=144,
8064÷x×x=144×x,
144x÷144=8064÷144,
x=56.