C•8-9344=24520 5689+7•a=23665

Question

C•8-9344=24520


5689+7•a=23665

Answer 1

1) с*8=24520+9344
с*8=33864
с=33864\8
с=4233

2) 7*а=23665-5689
7*а=17976
а=17976\7
а=2568