No Wonder Girls Were Turned Off By Mathematics

Pretty girl with tremulous eyes, if thou know the correct method of inversion, tell me what is the number which, multiplied by 3 and added to three-fourths of the quotient, and divided by 7, and reduced by subtraction of a third part of the quotient, and then multiplied into itself, and having subtracted from the product, and the square root of the product subtracted and 8 added, and the sum divided by 10, yields 2?