Question

determina a,b,c,c,e:a-309=309;1000=10×10×b;c+765=200;d:7=53;6×e+1=55

Answer 1

a-309=309
a=309+309=618

1000=10×10×b
1000=100b
b=10

c+765=200
c=200-765=-565

d:7=53
d=53×7=371

6×e+1=55
6e=55-1
6e=54/6
e=9

Answer 2

a-309=309
a=309+309
a=618

1000=10×10×b
1000=100×b
b=1000:100
b=100

c+765=200
c=200-765
c=-565 aici cred ca ai gresit, poate mai era un 0 . Daca e asa atunci 2000-765=1235

d:7=53
d=53×7
d=371

6×e+1=55
6e=55-1
6e=54
e=54:6
e=9