Combien font -2x+1=-7



Merci d'avance


Sagot :

Bonjour,

-2x + 1 = -7

-2x = -7 - 1

-2x = -8

-2x / -2 = -8 / -2

x = 4

bonjour

-2x = -7-1

-2x = -8

x = -8/-2

x = 4