You lose 0.3 point for stepping out of bounds during a floor routine. your final score is 9.124. write and solve an equation to find your score before the penalty

In the floor routine, 0.3 point was subtracted due to a penalty. Because 9.124 is the result of the routine, and 0.3 was taken out before presenting that result, we must add 0.3 back to the score received in order to find the score before the penalty. So, 9.124 + 0.3 gives the score before the penalty, 9.424.

For the purpose of representation and answering this item, we let x be the score just before the penalty. That is, before 0.3 points was lost due to stepping out of bounds. If we take 9.124 as your score after the penalty, the value of x can then be expressed and solved as follows. 
 
 x = 9.124 + 0.3

Simplifying,

  x = 9.424