<span>1)9,5х+2=5,7х-5,6</span>
<span>9,5х-5,7х=-5,6-2</span>
<span>3,8х=-7,6</span>
<span>х=-7,6/3,8=-2</span>
<span>2)<span>1,5х+8=3,1х+16</span></span>
<span><span>1,5х-3,1х=16-8</span></span>
<span><span>-1,6х=8</span></span>
<span><span>х=-8/1,6=-5</span></span>
<span><span>3)<span>2,9х+7,4=х+1,7</span></span></span>
<span><span><span>2,9х-х=-7,4+1,7=-5,7</span></span></span>
<span><span><span>1,9х=-5,7</span></span></span>
<span><span><span>х=-5,7/1,9=-3</span></span></span>