afla necunoscute a×4=804 3×c=399 500÷a=5 777÷e=7 d÷9=50 2×b=824​

Explicație pas cu pas:

a×4=804

a=804:4

a=201

v:201×4=804

3×c=399

c=399:3

c=133

v:3×133=399

500:a=5

a=500:5

a=100

v:500:100=5

777:e=7

e=777:7

e=111

v:777:111=7

d:9=50

d=50×9

d=450

v:450:9=50

2xb=824

b=824:2

b=412

v:2×412=824

Răspuns:

a×4=804

a=804:4

a=201

201×4=804

3×c=399

c=3×399

c=133

3×133=399

500:a=5

a=500:5

a=100

500:100=5

777:e=7

e=777:7

e=111

777:111=7

d:9=50

d=50×9

d=450

450:9=50

2×b=824

b=824:2

b=412

2×412=824

Sper ca te-am ajutat!