Pls help I'm on a test

Since your on a test were not supposed to give you an answer

Step-by-step explanation:

I will give you hint though, (add the exponents).

I think it's the bottom one

Step-by-step explanation:

don't listen to the other guy know every one does the test on here but I think it the bottom one good luck

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