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a fost răspuns

AFLATI NUMARUL X.
A ) 2 * X +3 EGAL 9


B) 3+5*5
C ) 4*X -6 egal 18
d) 7-3*x egal 1

Răspuns :

Pisicuta0606
2*x+3=9
2*x=9-3
2*x=6
x=6:2
x=3

3+5*5=3+25=28

4*x-6=18
4*x=18+6
4*x=24
x=24:4
x=6

7-3*x=1
3*x=7-1
3*x=6
x=6:3
x=2


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