Решебник по математике 5 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 48

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\[\boxed{\mathbf{7}.}\]

\[\textbf{а)}\ (a - 15) - 16 = 18\]

\[a - 15 = 18 + 16\]

\[a - 15 = 34\]

\[a = 34 + 15\]

\[a = 49.\]

\[4.\ Ф.\]

\[\textbf{б)}\ (x - 41) - 21 = 8\]

\[x - 41 = 8 + 21\]

\[x - 41 = 29\]

\[x = 29 + 41\]

\[x = 70.\]

\[7.\ Р.\]

\[\textbf{в)}\ (136 - x) - 16 = 52\]

\[136 - x = 52 + 16\]

\[136 - x = 68\]

\[x = 136 - 68\]

\[x = 68.\]

\[6.\ У.\]

\[\textbf{г)}\ (558 + x) - 52 = 746\]

\[558 + x = 746 + 52\]

\[558 + x = 798\]

\[x = 798 - 558\]

\[x = 240.\]

\[2.\ К.\]

\[\textbf{д)}\ 419 - (y - 9) = 36\]

\[y - 9 = 419 - 36\]

\[y - 9 = 383\]

\[y = 383 + 9\]

\[y = 392.\]

\[3.\ Т.\]

\[\textbf{е)}\ \ 92 - (17 - b) = 89\]

\[17 - b = 92 - 89\]

\[17 - b = 3\]

\[b = 17 - 3\]

\[b = 14.\]

\[1.\ Ы.\]

\[Зашифрованное\ слово:\]

\[ФРУКТЫ.\]

\[\boxed{\mathbf{8}.}\]

\[\textbf{а)}\ 480\ :60 = 8\]

\[8 \cdot 5 = 40\]

\[40 + 260 = 300\]

\[300\ :60 = 5\]

\[Ответ:5.\]

\[\textbf{б)}\ 1000\ :8 = 125\]

\[125 \cdot 4 = 500\]

\[500 - 140 = 360\]

\[360\ :18 = 20\]

\[20 + 20 = 40\]

\[Ответ:40.\]

\[\textbf{в)}\ 2000 - 100 = 1900\]

\[1900\ :19 = 100\]

\[100 - 60 = 40\]

\[40 \cdot 4 = 160\]

\[Ответ:160.\]