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(324:2+345:5)+12346=4×a+12177

Răspuns :

(324:2+345:5)+12346=4×a+12177

162+69+12346=4a+12177

12577=4a+12177

4a=12577-12177

4a=400

a=400:4

a=100

(324:2+345:5)+12346=4×a+12177
(162+ 69) +12346= 4a+ 12177
231+ 12346= 4a+ 12177
12577= 4a+ 12177
4a= 12577-12177
4a= 400
a= 400/4
a= 100