Question

Пж срочно нужно задание читать внимательно

Answer 1

Ответ:

$1)18 \div ( - 6) = - 3 \\ - 70.98 \div ( - 14) = 5.07 \\ - \div ( - ) = + \\ - 1 \div 7 = - \frac{1}{7}$

$2) - 8x = 72 \\ x = - 9 \\ \\ 0.9x = - 5.4 \\ x = - 6 \\ \\ - 1.7x = - 5.1 \\ x = 3$

$3) - 6.19 + ( - 1.5 + 5.19) = - 6.19 - 3.69 = - 9.88 \\ 9.38 - ( - 10 + 5.38) = 9.38 + 4.62 = 14 \\ - ( - 21.4 + 12.7) + ( - 20.4 + 12.7) = 8.7 - 8.7 = 0$