Question

afla valoarea lui n din egalitatile: 5×n+245 =845 54÷n+67×5=344 n÷3×8=616 894-n÷4=833

Answer 1

5xn+245=845
5xn=845-245
5xn=600
n=600:5
n=120

54:n+67x5=344
54:n+335=344
54:n=344-335
54:n=9
n=54:9
n=6

n:3x8=616
n:3=616:8
n:3=77
n=77x3
n=231

894-n:4=833
n:4=894-833
n:4=61
n=61x4
n=244

Answer 2

5×n+245=845
5×n=845-245
5×n=600
n=600:5
n=120

54:n+67×5=344
54:n+335=344
54:n=344-335
54:n=9
n=54:9
n=6

n:3×8=616
n:3=616:8
n:3=77
n=77×3
n=231

894-n:4=833
n:4=894-833
n:4=61
n=61×4
n=244