Question

Compuneti probleme dupa desene.​

Answer 1

Răspuns:

1. a=27, b=4•a, a+b=?

2. a=13, b=4•a, b-a=?

3. a=b+5, b=20, c=4•a, a+b+c=?

4. a=4•b, b=x, a+b=90; a=?, b=?

5. a=b+39, b+a=117, b=?

6. a=b+17, b=20, a+b+c=101, c=?

7. b=x•4, 3•x=72, a=x, X=?