Решебник по математике 5 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 46

\[Страница\ 46.\]

\[\boxed{\mathbf{2}.}\]

\[\textbf{а)}\ 5 + a + 3 \cdot b\]

\[\textbf{б)}\ 25 + 48\]

\[\textbf{в)}\ a + b\]

\[\textbf{г)}\ 25 + 44 = 69\]

\[\textbf{д)}\ 5x + 15 = 60\]

\[\textbf{е)}\ 25 > 10\]

\[\textbf{ж)}\ 15 - x < 40\]

\[\boxed{\mathbf{3}.}\]

\[96 + (49 - x) = 105\]

\[x = 28:\]

\[96 + (49 - x) =\]

\[= 96 + (49 - 28) = 96 + 21 =\]

\[= 117.\]

\[x = 0:\]

\[96 + (49 - x) = 96 + (49 - x) =\]

\[= 96 + 49 = 145.\]

\[x = 12:\]

\[96 + (49 - x) =\]

\[= 96 + (49 - 12) = 96 + 37 =\]

\[= 135.\]

\[x = 40:\]

\[96 + (49 - x) =\]

\[= 96 + (49 - 40) = 96 + 9 =\]

\[= 105.\]

\[Корнем\ уравнения\ будет\ \]

\[число\ x = 40.\]

\[\boxed{\mathbf{4}.}\]

\[x(6 - x) = 0\]

\[x = 0;\ \ x = 6.\]

\[\boxed{\mathbf{5}.}\]

\[\textbf{а)}\ Решено\ верно.\]

\[\textbf{б)}\ a + 84 = 158\]

\[a = 158 - 84\]

\[a = 74.\]

\[\textbf{в)}\ 196 + b = 400\]

\[b = 400 - 196\]

\[b = 204.\]

\[\textbf{г)}\ x - 316 = 16\]

\[x = 316 + 16\]

\[x = 332.\]

\[\textbf{д)}\ решено\ верно.\]

\[\textbf{е)}\ 452 - x = 35\]

\[x = 452 - 35\]

\[x = 417.\]

\[\textbf{ж)}\ решено\ верно.\]