Answer:
The correct option is C) 7.
Step-by-step explanation:
Consider the provided equation.
[tex]11.3x+7.2=86.3[/tex]
We need to solve the provided equation for x.
Subtract 7.2 from both side.
[tex]11.3x+7.2-7.2=86.3-7.2[/tex]
[tex]11.3x=79.1[/tex]
Divide both sides by 11.3.
[tex]\frac{11.3x}{11.3}=\frac{79.1}{11.3}[/tex]
[tex]x=7[/tex]
Hence, the value of the equation is x=7.
Thus the correct option is C) 7.