15 целых 7/18+5/18+11 целых8/9+4/9=15 целых 12/18+11 целых12/9=26целых 36/18=28<span>целых</span>
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<span><span>у</span>=<span><span>(<span><span><span>2⋅x</span>4</span>⋅x+3</span>)</span>′</span>=</span><span>у=<span><span>(<span><span><span>2⋅x</span>4</span>⋅x</span>)</span></span></span><span>у=<span><span>(<span><span>2⋅x</span>4</span>)</span>′</span>⋅x+<span><span>2⋅x</span>4</span></span><span>у=<span><span><span>(<span>2⋅x</span>)</span>′</span>4</span>⋅x+<span><span>2⋅x</span>4</span></span><span><span>24</span>⋅x+<span><span>2⋅x</span>4</span></span>
Ответ:
<span><span>у</span>=<span>24</span>⋅x+<span><span>2⋅x</span>4</span></span>
Сколько кг лука в двух ящиках?
1) 11 - 4 = 7 кг - во втором ящике.
2) 11 + 7 = 18 кг - в двух ящиках.