Question

(х-8) •40=640; (х-8):40=640

Answer 1

(х-8)×40=640
40х-320=640
40х=640+320
40х=960
х=960:40
х=24

(х-8):40=640
х-8=640×40
х-8=25600
х=25600+8
х=25608