Question

M-ajutati va rog?
b-5=0.25*a
a-10=0.25*b
Aflati a si b.

Answer 1

b-5=0.25*a
b=0.25a+5

a-10=0.25*b
a-10=0.25 (0.25a+5)
a-10=0.0625a+1.25
a-0.0625a=1.25+10
0.9375a=11.25
a=11.25:0.9375
a=12

b=0.25*12+5
b=3+5
b=8