НОД - наибольший общий делитель
17=17*1
34=2*17
51=3*17
НОД(17;34;51)=17
<span>235 ÷ 87 = 2.(7011494252873563218390804597)</span><span><span>-23587</span><span>1742.(7011494252873563218390804597)</span><span> -610</span><span> 609</span><span> -100</span><span> 87</span><span> -130</span><span> 87</span><span> -430</span><span> 348</span><span> -820</span><span> 783</span><span> -370</span><span> 348</span><span> -220</span><span> 174</span><span> -460</span><span> 435</span><span> -250</span><span> 174</span><span> -760</span><span> 696</span><span> -640</span><span> 609</span><span> -310</span><span> 261</span><span> -490</span><span> 435</span><span> -550</span><span> 522</span><span> -280</span><span> 261</span><span> -190</span><span> 174</span><span> -160</span><span> 87</span><span> -730</span><span> 696</span><span> -340</span><span> 261</span><span> -790</span><span> 783</span><span> -700</span><span> 696</span><span> -400</span><span> 348</span><span> -520</span><span> 435</span><span> -850</span><span> 783</span><span> -670</span><span> </span></span>
5:9=0(остаток 5)
ПРОВЕРКА:
0*5+5=0+5=5
<span>23,5-(2,3a+1.2a)=19,3
</span><span>23,5-2,3a-1.2a=19,3
</span>-3.5а=19,3-23,5
-3.5а=-4,2
а=-4,2/-3.5
а=1.2
6(5a+3)-(7+a)-2(4-3a)=30a+18-7-a-8+6a=35a+3
