Multiply both sides by x so that x will be in the numerator
0.4 is 4/10 in decimal form.
X=6
16 plus 2 is 18 and divided by 3 is 6
4⁶ / 4⁸
Since the 'bases' are the same on top and bottom, you can
just subtract the bottom exponent from the top one.
4⁶ / 4⁸
= 4⁶⁻⁸
= 4⁻²
= 1/4²
= 1/16
