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multimea z 4-3x=25 si 6-2x=16

Răspuns :

4-3x=25

-3x=21

x=-7

6-2x=16

-2x=10

x=-5

4 - 3x = 25 / -4.
-3x = 21.
x = 21 / -3
x = -7.

6 - 2x = 16 / -6.
-2x = 10.
x = 10/-2.
x = -5.