作业帮(0.5x+1.5)\0.1-(0.4x-1)\0.5=-4
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(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