我唔識點計呢條數,,有冇人可以幫我??急!!!!!! thx~~~~~~

1/3(x+9) = 1/3-0.5(x+3) 〔全式乘6，冇左小數或者分數就會易計〕
1/3(x+9)x6 = [1/3-0.5(x+3)]x6
2(x+9) = 2-3(x+3)
2x+18 = 2-3x-9
2x+3x = 2-9-18
5x = -25
x = -5

1/3(x+9)=1/3-0.5(x+3) <------全部 x6

2(6x+54) = 2-3(6x+18)

12x+108 = 2-18x-54

30x+160 = 0

30x = -160

x = -5.33 (3,s,f )