Respuesta :

1/3(21-3a)=6-a
21/3-3/3 a=6-a
7-a=6-a
-a+a=6-7
0≠-1  Then this equation don´t have solution.

Answer: this equation doesn´t have solution. because 0≠-1

Answer:

No solution exist.

Step-by-step explanation:

The given equation is

[tex]\frac{1}{3}(21-3a)=6-a[/tex]

Using distributive property we get

[tex]\frac{1}{3}(21)+\frac{1}{3}(-3a)=6-a[/tex]

[tex]7-a=6-a[/tex]

Isolate variable terms.

[tex]a-a=6-7[/tex]

[tex]0=-1[/tex]

This statement is false for any value of a because [tex]0\neq -1[/tex]

Therefore the given equation has no solution.

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