3. Реши уравнения. 1000-x=35+ 6×8 81÷у=63÷7 х×8=100-(4×9)​

Ответ:

1. \(1000 - x = 35 + 6 \times 8\)

Решение:

\(1000 - x = 35 + 48\)

\(1000 - x = 83\)

\(x = 1000 - 83\)

\(x = 917\)

2. \(81 \div y = 63 \div 7 \times 8 = 9 \times 8\)

Решение:

\(81 \div y = 72\)

\(y = \frac{81}{72}\)

\(y = \frac{9}{8}\)

3. \(x \times 8 = 100 - (4 \times 9)\)

Решение:

\(x \times 8 = 100 - 36\)

\(x \times 8 = 64\)

\(x = \frac{64}{8}\)

\(x = 8\)