A:23+56=60 510:3-у=20 70*х-20=540

Question

A:23+56=60
510:3-у=20
70*х-20=540

Answer 1

A:23+56=60 a=92
510:3-y=20 y=150
70*x-20=540 x=8

Answer 2

70*8-20=540
510:3-150=20