Question

a+b=80
a÷b=3
a=? =?b​

Answer 1

Răspuns:

a+b=80

a÷b=3=>a=3b

3b+b=80

4b=80

b=80÷4

b=20

a=20×3

a=60

Answer 2

Răspuns:

A+B=80

A:B=3=>A=3B

A+V=80=>3B+B=4B=>80:4=20

B=20

A=60

REZOLVAREA FIGURATIVA

A|--|--|--|} 80

B|--| }

80:4=20

B=20

A=60

SUCCES!!!