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{10-3×[1-2×(×-7)]}=-5​

Răspuns :

10-3x[1-2x(X-7)] =-5

10-3x(1-2X+14) =-5

10-3x(-2X+15)=-5

10+6X-45=-5

6X-35=-5

6X=-5+35

6X=30

[tex]x = \frac{30}{6} [/tex]

[tex]x = 5[/tex]