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①x+456=546②876-x=198.

题目详情
①x+456=546
②876-x=198.
①x+456=546
②876-x=198.
①x+456=546
②876-x=198.
①x+456=546
②876-x=198.
①x+456=546
②876-x=198.

▼优质解答
答案和解析
(1)x+456=546,
x+456-456=546-456,
x=90;
(2)876-x=198,
876-x+x=198+x,
198+x=876,
198+x-198=876-198,
x=678.
(1)x+456=546,
x+456-456=546-456,
x=90;
(2)876-x=198,
876-x+x=198+x,
198+x=876,
198+x-198=876-198,
x=678. (1)x+456=546,
x+456-456=546-456,
x=90;
(2)876-x=198,
876-x+x=198+x,
198+x=876,
198+x-198=876-198,
x=678. (1)x+456=546,
x+456-456=546-456,
x=90;
(2)876-x=198,
876-x+x=198+x,
198+x=876,
198+x-198=876-198,
x=678. (1)x+456=546,
x+456-456=546-456,
x=90;
(2)876-x=198,
876-x+x=198+x,
198+x=876,
198+x-198=876-198,
x=678.