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2X+4*(35-X)=94 解方程?
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很高兴为您解答
2X+4*(35-X)=94,2X+4*35-4X=94,-2X=94-140,2X=46,X=23哟
。
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咨询记录 · 回答于2022-11-27
2X+4*(35-X)=94 解方程?
亲亲
很高兴为您解答
2X+4*(35-X)=94,2X+4*35-4X=94,-2X=94-140,2X=46,X=23哟
。
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亲亲
方程拓展信息:方程是指含有未知数的等式。是表示两个数学式(如两个数、函数、量、运算)之间相等关系的一种等式,使等式成立的未知数的值称为“解”或“根”。求方程的解的过程称为“解方程”
。通过方程求解可以免去逆向思考的不易,直接正向列出含有欲求解的量的等式即可。方程具有多种形式,如一元一次方程、二元一次方程、一元二次方程等等,还可组成方程组求解多个未知数
。在数学中,一个方程是一个包含一个或多个变量的等式的语句。求解等式包括确定变量的哪些值使得等式成立。变量也称为未知数,并且满足相等xing的未知数的值称为等式的解
。方程式或简称方程,是含有未知数的等式。即:⒈方程中一定有含一个或一个以上未知数的代数式;2.方程式是等式,但等式不一定是方程
。方程中,恒等式叫做恒等方程,矛盾式叫做矛盾方程。在未知数等于某特定值时,恰能使等号两边的值相等者称为条件方程,例如,在时等号成立。使方程左右两边相等的未知数的值叫做方程的解
。只含有一个未知数,且未知数次数是一的整式方程叫一元一次方程。
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鸡兔同笼那一