Which equation, when solved, results in a different value of x than the other three?

A. 8.3=-0.6x+11.3
B.11.3=8.3+0.6x
C.11.3-0.6x=8.3
D.8.3-0.6x=11.3

Respuesta :

solve each one to find that D is the answer

Answer:  The correct equation is (D) [tex]8.3-0.6x=11.3.[/tex]

Step-by-step explanation:  We are to select the equation that results in a different value of 'x' than the other three equations.

Let us solve the equations one by one.

(A). We have

[tex]8.3=-0.6x+11.3\\\\\Rightarrow -0.6x=8.3-11.3\\\\\Rightarrow -0.6x=-3\\\\\Rightarrow x=\dfrac{3}{0.6}\\\\\Rightarrow x=5.[/tex]

(B) We have

[tex]11.3=8.3+0.6x\\\\\Rightarrow 0.6x=11.3-8.3\\\\\Rightarrow 0.6x=3\\\\\Rightarrow x=\dfrac{3}{0.6}\\\\\Rightarrow x=5.[/tex]

(C) We have

[tex]11.3-0.6x=8.3\\\\\Rightarrow 0.6x=11.3-8.3\\\\\Rightarrow 0.6x=3\\\\\Rightarrow x=\dfrac{3}{0.6}\\\\\Rightarrow x=5.[/tex]

(D) We have

[tex]8.3-0.6x=11.3\\\\\Rightarrow -0.6x=11.3-8.3\\\\\Rightarrow -0.6x=3\\\\\Rightarrow x=-\dfrac{3}{0.6}\\\\\Rightarrow x=-5.[/tex]

Therefore, we see that the solution of the first three equations is x = 5 and the solution of the last equation is  x = - 5.

Thus, the equation (D) results in a different value of 'x' when solved.Option (D) is correct.

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