3-1.2x-5分之4x-12等于?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/08 03:57:08
3-1.2x-5分之4x-12等于?3-1.2x-5分之4x-12等于?3-1.2x-5分之4x-12等于?3-1.2x-4x/5-12=3-6x/5-4x/5-12=3-10x/5-12=3-2x-

3-1.2x-5分之4x-12等于?
3-1.2x-5分之4x-12等于?

3-1.2x-5分之4x-12等于?
3-1.2x-4x/5-12
=3-6x/5-4x/5-12
=3-10x/5-12
=3-2x-12
=-9-2x

3-1.2x-(4x-12)/5=(15-6x)/5-(4x-12)/5=(15-6x-4x+12)/5=24/5-2x