3√2-5√8+√32=3√2-10√2+4√2=-3√2
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2x-2y+3x=4
<span>2x=0,5+3y</span>
5x-2y=4
x=0,25+1,5y
5*(0,25+1.5y)-2y=4
у=0.5
x=0,5+3*0,5
х=1