Réponse:
a) 4x - 16=0
4x= 16
x=4
》-4 Is not the solution of this equation
b) 24-(5+a)= -8a-3
24-5-a= -8a - 3
19-a= -8a-3
-a+8a= -3-19
7a=22
a=22/7
》-4 is not the solution of this equation
c) 5(2+t) + 4= -6
10 + 5t + 4= -6
5t= -6-14
5t= -20
t= -4
》-4 Is the solution of this equation
d) 7x^2-2x-4=x (7x-1)
7x^2-2x-4=7x^2-x
-2x+x-4=0
-x=4
x= -4
》-4 Is the solution of thIs equation
