X + 6.38 = 15.75<span> would be the answer x=9.37 for the first option, you are not adding 15.75 and x together. for the second option, it is correct, because in the problem, it is giving the operation, 15.75-6.38=x. when you turn it do inverse operation, you get </span><span>x + 6.38 = 15.75. for the third option, it doesn't make sense and it's not doing what the problem is asking for. for the fourth option, you are not multiplying. you are subtracting </span>15.75 by<span> 6.38 to get x.</span>
