That dont make sens, so me rerite it tu sumthun that make sens
x=[(1/6) +(1/12) +(1/7)]x +5 +4 +(1/2)x
step 1...(1/6) +(1/12) +(1/7)=(14/84) +(7/84) +(12/84)...=33/84
x=(33/84)x +0.5x +9
x=0.392857142x +0.5x+9
or x-0.892857142x=9
or 0.107142857x=9
x=84