Question

2930-12a+37=2307
помогите!!?

Answer 1

1)2930+37=2967
2)2967-2307=660
3)660/12=55
a=55

Answer 2

2930-12а+37=2307
12а=2930-2307
12*а=623
а=623:12
а=51(11ост)