а) б)
<span>2,5+|х–2|=4,7 <span>|х-2|=0</span> </span>
<span><span>|х–2|=4,7-2,5 х-2=0</span></span>
<span><span><span>|х–2|=2,2 х=2</span></span></span>
<span><span><span>х-2=2,2 х-2=-2,2</span></span></span>
<span><span><span>х=2,2+2 х=-2,2+2</span></span></span>
<span><span><span>х=4,2 х=-0,2</span></span></span>