Question

решить уравнение 21х+16х+55=166

Answer 1

37х=166-55
37х=111
х=111/37=3

Answer 2

$21x + 16x + 55 = 166 \ 37x + 55 = 166 \ 37x = 166-55 \ 37x = 111 \ x = frac{111}{37} \ x = 3$