Question

Determină valoarea fiecărei litere , știind că :
A×2=b
b÷3=c
c+36=d
d-19=87

__ ____________
a-304=b
B+29=c
C÷4=d
D×6=294


____________

A+b=300
B=c×9
C=d+13
D=e÷6
E÷6=19

_____________



A ×b=90
B=c×3
C=d÷10
D-e=250
E÷10=5

Answer 1

A×2=b
b÷3=c
c+36=d
d-19=87 》 d=87+19 》 d=106

c+36=d
d=106
inlocuim.....
c+36=106 》c=106-36 》c=70

b÷3=c
c=70
inlocuim....
b÷3=70 》 b=70×3 》b=210

A×2=b
b=210
inlocuim....
A×2=210 》A=210:2 》A=105
__ ____________
a-304=b
B+29=c
C÷4=d
D×6=294 》D=294:6 》D=49

C÷4=d
D=49
inlocuim....
C÷4=49 》C=49×4 》C=196

B+29=c
C=196
inlocuim.....
B+29=196 》B=196-29 》B=167

a-304=b
B=167
inlocuim....
a-304=167 》a=167+304 》a=471
____________

A+b=300
B=c×9
C=d+13
D=e÷6
E÷6=19 》E=19×6 》E=114

D=e÷6
E=114
inlocuim....
D=114:6 》D=19

C=d+13
D=19
inlocuim....
C=19+13 》C=32

B=c×9
C=32
inlocuim....
B=32×9 》B=288

A+b=300
B=288
inlocuim....
A+288=300 》A=300-288 》A=12
_____________

A ×b=90
B=c×3
C=d÷10
D-e=250
E÷10=5 》E=5×10 》E=50

D-e=250
E=50
inlocuim.....
D-50=250 》D=250+50 》D=300

C=d÷10
D=300
inlocuim....
C=300÷10 》C=30

B=c×3
C=30
inlocuim....
B=30×3 》B=90

A ×b=90
B=90
inlocuim....
A×90=90 》A=90:90 》A=1