1.6\(9.7-3.6x)=8.6\12.47
1.6/(9.7-3.6x)=8.6/12.47
(9.7-3.6x)*8.6=1.6*12.47
(9.7-3.6x)*8.6=19.952
9.7-3.6x=19.952
9.7-3.6x=19.952:8.6
9.7-3.6x=2.32
-3.6x=9.7-2.32
-3.6x=7.38
x=7.38:(-3.6)
x=-2.05