5:
a: x=6,4-6,4=0
b: =>x=9,61:0,1=96,1
c: =>x=53,27:53,27=1
d: =>x=4,64:10=0,464
e: =>x=6,15
f: =>x=0,069:6,9=0,01
\(5,\)
\(a,x=6,4-6,4=0\)
\(b,=>x=9,61:0,1=96,1\)
\(c,=>x=53,27:53,27=1\)
\(d,=>x=4,64:10=0,464\)
\(e,=>x=6,15\)
\(f,=>x=0,069:6,9=0,01\)