Answer :

luana
[tex]\frac{x}{2}-7=9\ \ \ \ | add\ 7\\\\ \frac{x}{2}=16\ \ \ | multiply\ by\ 2\\\\ x=32\\\\Solution\ is\ x=32.[/tex]
[tex] \frac{x}{2} [/tex]-7 = 9 First you want to get the variable by itself on one side of the equastion, so you add 7 to both sides of the equal sign... [tex] \frac{x}{2} [/tex] -7 = 9
        + 7  + 7
      ------------------
[tex] \frac{x}{2} [/tex] = 16 Then since x is being divided by two, you multiply by two on both sides of the equals sign, to get x completely by itself

[tex] \frac{x}{2} [/tex] = 16
x 2                              x 2
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x = 32 
Then to see if your answer is correct, you plugin 32 for x, and the statement will be correct. [tex] \frac{32}{2} [/tex] - 7 = 9
                                16 - 7 = 9 
                                 9 = 9  The statement is correct so your solution for x is correct as well.