<span>45,7x+0,3x-2,4=89,6</span>
<span>45,7х+0,3х=89,6+2,4</span>
<span>46х=92</span>
<span>х=92:46</span>
<span>х=2</span>
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</span>
<span><span>80,1y-10,1y+4,7=81,7</span></span>
<span><span>80,1у-10,1у=81,7-4,7</span></span>
<span><span>70у=77</span></span>
<span><span>у=77:70</span></span>
<span><span>у=1,1</span></span>
<span>
</span>
<span>
</span>
<span>
</span>
<span>
</span>
<span>
</span>