ГДЗ по математике 6 класс Мерзляк ФГОС Задание 94

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\[1)\ (y - 164) + 308 = 500\]

\[y - 164 = 500 - 308\]

\[y - 164 = 192\]

\[y = 192 + 164\]

\[y = 356.\]

\[2)\ 919 - (x + 364) = 519\]

\[x + 364 = 919 - 519\]

\[x + 364 = 400\]

\[x = 400 - 364\]

\[x = 36.\]

\[3)\ 36 \cdot (x - 23) = 144\]

\[x - 23 = 144\ :36\]

\[x - 23 = 4\]

\[x = 4 + 23\]

\[x = 27.\]

\[4)\ (400 - y)\ :25 = 12\]

\[400 - y = 12 \cdot 25\]

\[400 - y = 300\]

\[y = 400 - 300\]

\[y = 100.\]