Sagot :
-3 ( 3x + 1 ) = 0 (distribute -3 to 3x + 1)
-9x - 3= 0
-3 = 9x (transpose - 9x)
-3/9 = x (divide both side by 9)
-1/3 = x (reduce to lowest term)
Checking by substitution
-3 ( 3x + 1 ) = 0
-3 ( 3(-1/3) + 1) = 0 (substitute the value of x which is -1/3)
-3 ( -1 + 1 ) = 0
-3 (0) = 0
0 = 0
-9x - 3= 0
-3 = 9x (transpose - 9x)
-3/9 = x (divide both side by 9)
-1/3 = x (reduce to lowest term)
Checking by substitution
-3 ( 3x + 1 ) = 0
-3 ( 3(-1/3) + 1) = 0 (substitute the value of x which is -1/3)
-3 ( -1 + 1 ) = 0
-3 (0) = 0
0 = 0
[tex]-3(3x+1)[/tex]
[tex]=(3)(3x)[/tex]
[tex]=(-3) (1)[/tex]
[tex]=-9 x -3[/tex]
(by Distributive Property of Multiplication)
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[tex]=(3)(3x)[/tex]
[tex]=(-3) (1)[/tex]
[tex]=-9 x -3[/tex]
(by Distributive Property of Multiplication)
Click "Thanks" if I helped. It'll be appreciated. :)