Question

Rezolvati:
(25:5)x8=a
a=2xb
___________
(a+b):6=?
(a-b):2=?

Answer 1

5×8=a

40=a

a=40

a=2b

40=2b

b=40:2

b=20

(a+b):6=(40+20):6=60:6=10

(a-b):2=(40-20):2=20:2=10

Answer 2

(25:5)x8=40

a=2xb,a=40⇒2xb=40⇒b=20

(a+b):6=(40+20):6=60:6=10

(a-b):2=(40-20):2=20:2=10

COROANA?