Question

помогите..............

Answer 1

$2215 \div (128 + 315) \times 86 \\ 1)315 + 128 = 443 \\ 2)2215 \div 443 \times 86 = 430. \\ \\ (522 + 723) \times (932 - 517) \times 57 \\ 1)522 + 723 = 1245 \\ 2)932 - 517 = 415 \\ 3)1245 \times 415 \times 57 = 29450475.$