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a fost răspuns

Afla numerele necunoscute X*6*1=6*7; 3*X*2=10*6; 2*2*X=12; 40:10=X-15; 134+125-X=32.

Răspuns :

x*6*1=6*7
x*6=6*7
x*6=42
x=42:6
x=7
3*x*2=10*6
3*x*2=60
3*x=60:2
3*x=30
x=30:3
x=10
2*2*x=12
4*x=12
x=12:4
x=3
40:10=x-15
4=x-15
x=15-4
x=11
134+125-x=32
259-x=32
x=259-32
x=227