Question

afla valoarea numarului necunoscut
340plus38-a=356
460-26plus c=986
d-56plus37=206
350plus36-a=146
a-359plus120=400
116plus358-a=109
480plus107plus a=999

Answer 1

1. 340+38-a=356
378-a=356
a=378-356
a=22
2. 460-26+c=986
434+c=986
c=986-434
c=552
3.d-56+37=206
d-56=206-37
d-56=169
d=169+56
d=225
4. 350+36-a=146
386-a=146
a=386-146
a=240
5. a-359+120=400
a-359=400-120
a-359=280
a=280+359
a=639
6. 116+358-a=109
474-a=109
a=474-109
a=365
7. 480+107+a=999
587+a=999
a=999-587
a=412

Sper ca te-am ajutat!