afla termenul necunoscut
a+2670=7994
a=
a=
4652+x6892
x=
x=
c-1254=4010
c=
c=
9999-d=3489
d=
d=
9354-z=2222
z=
z=


Răspuns :

a= 7994-2670
a=5324
x=6892-4652
x=2240
c=4010+1254
c=5264
d=9999-3489
d=6510
z=9354-2222
z=7132
a+2670=7994
a=7994-2670
a=5324

4652+x=6892
x=6892-4652
x=2240

c-1254=4010
c=1254+4010
c=5264

9999-d=3489
d=9999-3489
d=6510

9354-z=2222
z=9354-2222
z=7132