问题
解答题
已知△+△+△=105,□+○×△=356,(△+△)÷○=7.求□=?
答案
△+△+△=105,
3△=105,
△=35;
(△+△)÷○=7就可以变成:
(35+35)÷○=7,
70÷○=7,
○=10;
□+○×△=356就可变为:
□+10×35=356,
□=356-10×35,
□=356-350,
□=6.
已知△+△+△=105,□+○×△=356,(△+△)÷○=7.求□=?
△+△+△=105,
3△=105,
△=35;
(△+△)÷○=7就可以变成:
(35+35)÷○=7,
70÷○=7,
○=10;
□+○×△=356就可变为:
□+10×35=356,
□=356-10×35,
□=356-350,
□=6.