Question

397 +42 x m = 859
974 - 124 : n =943
40 x p -500 = 300
360-(2x a + 64) = 278

Answer 1

Vrei sa afli necunoscutele?daca da uite:
397+42xm=859
Mai intai inlocuim operatia necunoscuta cu o litera
397+a=859
a=859-397
a=462
42xm=462
m=462:42=11(rest11)
974-124:n=943
974-a=943
a=974-943
a=31
124:n=31
n=124:31=4
40xp-500=300
a-500=300
a=500+300
a=800
40xp=800
p=800:40=20
360-(2xa+64)=278
360-b=278
b=360-278
b=82
2xa+64=82
c+64=82
c=82-64
c=18
2xa=18
a=18:2=9