Question

Решите уравнение!!!!!!!!

Answer 1

(х+12,4):8,3=12,4
х+12,4=12,4*8,3
х+12,4=102,92
х=102,92-12,4
х=90,52

Answer 2

$( x + 12.4) \div 8.3 = 12.4 \\ x + 12.4 = 12.4 \times 8.3 \\ x + 12.4 = 102.92 \\ x = 102.92 - 12.4 \\ x = 90.52$