Question

解方程：1/2(x-4)+1/6(3x-2)=2x

Answer 1

(1)1/2(x-4)+1/6(3x-2)=2x

两边同乘以2

x-4+1/3(3x-2)=4x

x-4+x-2/3=4x

-4-2/3=2x

-14/3=2x

x=-7/3

(2)7(m+1)=12-(x+4)

7m+7-12=-x-48

x=-48-7m-7+12

x=-7m-43

(3)4x+3(2x-3)=12-(x+4)

4x+6x-9=12-x-4

11x=17

x=17/11

(4)2/3【3/2(x-4）-6】=2x+1

(x-4)-4=2x+1

x=-9