URGENT, va rog, dau coronita.

URGENT Va Rog Dau Coronita class=

Răspuns :

a
3x-7=10
3×-1=10
2=10
=10:2
=5

b
2x+1=4
2×-1+1=4
2×1=4
=4:2=2

c
2+x×3=6×2x-1
2+-1×3=6×2-1-1
3=0
=0:3
=0
scuze restu nustiu