48-3x=12如何解方程
4 8 - 1 2 = 3 x 3 6 = 3 x x = 3 6 ÷ 3 x = 1 2 jie xi kan bu dong ? mian fei zha kan tong lei ti shi pin jie xi zha kan jie da xiang si wen ti ① 4 7 x - 3 7 x = 1 2 jie :1 0x = 1 2 X = 1 . 2 ② x + 2 7 x = 3 4 jie :2 8 x = 3 4 x = 1 7 / 1 4 ( 3 ) 7 0% x + 2 0% x = 3 . 6 jie :0. 9 x = 3 . 6 x = 4 4 , 3 X - ( 1 / 2 + 1 / 4 ) = 7
48-12=3x 36=3x x=36÷3 x=12 解析看不懂?免费查看同类题解析查看解答相似问题48-3x=16解方程式过程如下:48-3x=16解:3x=48-16;3x=32;x=32÷3;x=10又2/3,所以48-3x=16解方程式最后的结果是x=10又2/3。使方程左右两边相等的未知数
da ,9 6 - 3 x = 1 2 ,jie ,jiang 3 x yi xiang zhi fang cheng you ce ,jiang 1 2 yi zhi fang cheng zuo ce ,9 6 - 1 2 = 3 x , 3 x = 8 4 ,fang cheng zuo you liang ce cheng yi 1 / 3 , x = 2 8 。yan zheng ,jiang x = 2 8 ,dai ru fang cheng 9 6 - 3 x = 1 2 zhong ,9 6 - 3 X 2 8 = " ①47x -37x=12解:10x=12X=1.2②x+27x=34 解:28x=34x=17/14(3)70%x + 20% x = 3.6解:0.9x=3.6x=44,3X-(1/2+1/4)=7
48-3x=12(根据题意列方程)3X=48-12(移项变符号)3X=36(化简未知数系数)X=36/3=18验算:把X=18带入方程中,得到左边=48-3*18=12=右边,所以4 8 - 3 x = 1 6 jie fang cheng shi guo cheng ru xia :4 8 - 3 x = 1 6 jie :3 x = 4 8 - 1 6 ; 3 x = 3 2 ; x = 3 2 ÷ 3 ; x = 1 0you 2 / 3 ,suo yi 4 8 - 3 x = 1 6 jie fang cheng shi zui hou de jie guo shi x = 1 0you 2 / 3 。shi fang cheng zuo you liang bian xiang deng de wei zhi shu "
4 8 - 3 x = 1 2 (gen ju ti yi lie fang cheng )3 X = 4 8 - 1 2 (yi xiang bian fu hao )3 X = 3 6 (hua jian wei zhi shu xi shu )X = 3 6 / 3 = 1 8 yan suan :ba X = 1 8 dai ru fang cheng zhong ,de dao zuo bian = 4 8 - 3 * 1 8 = 1 2 = you bian ,suo yi " 答,96-3x=12,解,将3x移项至方程右侧,将12移至方程左侧,96-12=3x,3x=84,方程左右两侧乘以1/3,x=28。验证,将x=28,代入方程96-3x=12中,96-3X28=