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3(2×+1)-10=2(×-3)+11

Răspuns :

3(2x + 1) - 10 = 2(x - 3) + 11 =

=6x + 3 - 10 = 2x - 6 + 11

=6x - 7 = 2x + 5

=6x - 2x = 5 + 7

=4x = 12

x = 12 : 4

x = 3