Question 237263
.92= 172,500/AC 


multiply both sides of the equation by AC to get:


.92*AC = 172,500


divide both sides of the equation by .92 to get:


AC = 172,500 / .92


solve for AC to get:


AC = 187,500


you move things around by adding or subtracting or multiplying or dividing both sides of the equation.


the equality remains the same.


if a = b, then a+7 = b+7


if a = b, then a-7 = b-7


if a = b, then a/7 = b/7


if a = b, then a*7 = b*7


if a = b, then log(a) = log(b)


if a = b, then a^7 = b^7


as long as a = b, you can always substitute a for b to get:


a = a


In your equation, you had .92 = 172500/AC


To move AC out of the denominator, all you had to do was multiply both sides of the equation by AC to get:


AC * .92 = (AC * 172500)/AC


The AC on the right side of the equation cancels out to get:


AC * .92 = 172500