Question

x:12*5=40 x*5=12*40 x+40=12*5

Answer 1

1) x:12*5=40
х:12=40/5
х=8*12
х=96

2) x*5=12*40
х*5=480
х=480/5
х=96
  3) x+40=12*5
х+40=60
х=60/40
х=20