The approximate dimensions of a swimming pool are 161 ft by 81 ft by 6.2 ft. a. Find the volume of the pool.
b. If 1 cu ft≈7.48 ​gal, about how many gallons does the pool​ hold?

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

what's the question here?

yes, i think so although i am not sure. this is a very strange question.