Question

Решить уравнение ((x•6–17)+129):2=101, (37:x+1099):5–209=11

Answer 1

Ответ:

$1)((x \times 6 - 17) + 129) \div 2 = 101 \\ (6x - 17 + 129) \div 2 = 101 \\ \frac{6x + 112}{2} = 101 \\ \frac{2(3x + 56)}{2} = 101 \\ 3x + 56 = 101 \\ 3x = 101 - 56 \\ 3x = 45 \\ x = 15 \\ 2)(37 \div x + 1099) \div 5 - 209 = 11 \\ \frac{37 + 1099x}{x} \times \frac{1}{5} - 209 = 11 \\ \frac{37 + 1099x}{5x} = 11 + 209 \\ \frac{37 + 1099x}{5x} = 220 \\ 37 + 1099x = 1100x \\ 1099x - 1100x = - 37 \\ - x = - 37 \\ x = 37$