Question

解方程3x+1/2=7+x/6 还有题目x+3/2=x-x-1/6

Answer 1

3x+1/2=7+x/6 两边乘12

6（3x+1）=2(7+x)

18x+6=14+2x

18x-2x=14-6

16x=8

x=8÷16

x=0.5

x+3/2=x-x-1/6 两边乘12

6（x+3）=12x-2(x-1)

6x+18=12x-2x+2

6x+18=10x+2

10x-6x=18-2

4x=16

x=16÷4

x=4