(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 22:52:33
(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4 10(0

(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4
(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4

(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4
 10(0.5x+1.5)-2(0.4x-1)=-4
 
5x+15-0.8x+2=-4
 
4.2x=-4-15-2
 
4.2x=-21
 
x=-5
 

(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4
10(0.5x+1.5)-2(0.4x-1)=-4
5x+15-0.8x+2=-4
5x-0.8x=-4-15-2
4.2x=-21
x=-21÷4.2
x=-5