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3X=-12, 2X-5=7, -3X+8=-7 repede!
dau coroana​


Răspuns :

Răspuns:

x=-12:3=-4

2x=7+5

2x=12

x=6

-3x=-7-8

-3x=-15

x=5

Răspuns:

3x=-12 => x= -12/3 => x= -4

2x-5=7 => 2x=7+5 => 2x= 12 => x= 12/2 => x= 6

-3x+8=-7 => -3x=-7-8 => -3x=-15 => x= -15/-3 => x=5