Solve the equation for x : 6x - 87 + 3x = 4 + 9 - x Pick:  A) 12  B) 5  C) 10  D) 9  E) 3
10   10   9 x + x = 13 + 87   10 x = 100 =&gt; x = 10
<result>C</result>
Solve the equation for x : 6x - 87 + 3x = 4 + 9 - x