Question

buna ajutatima si pe mine la doua exerciti

a+b=300
b=c*9
c=d+13
d=e:6
e:6=19

steluta inseamna ori



a*b=90
b=c*3
c=d:10
d-e=250
e:10=5

va rog ajutatima dau coroana

Answer 1

1)  e=114
     d=19
     c=32
     b=288
     a=12

Answer 2

daca e:6=19 => e= 19 x 6 = 114
d=19
c=13+19=32
b=32 x 9=288
a=b=300, b=288 => a=300-288=12



e:10=5 => e=5 x 10= 50
d-e=250 => d=250+50=300
c=d:10 => c=300:10=30
b=c x 3 => b=30 x 3=90
a x b=90, b=90 => a=1