х • 20 = 40 80 - х = 10

Question

х • 20 = 40
80 - х = 10

Answer 1

1)х*20=40
  х=40:20
  х=2
2)80-х=10
  х=80-10
  х=70

Answer 2

Х×20=40
х=40÷20
х=2
2×20=40
40=40