<span><span>55х - 155 - 9х = 121
46 х = 121 + 155
46 х = 276
х = 276 : 46
х = 6
Проверка:
55 *6 - 155 - 9* 6 = 121</span><span>
</span></span>
3х-2у - вот на столько
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54 = 2 * 3 * 3 * 3
108 = 2 * 2 * 3 * 3 * 3
162 = 2 * 3 * 3 * 3 * 3
378 = 2 * 3 * 3 * 3 * <span>7
</span>2 * 3 * 3 * 3<span> = </span><span>54
</span>
НОД (54 <span>; </span>108 <span>; </span>162 <span>; </span>378<span>) =54</span>