624 – 4 +9 (y^3+ 6)
O A. 9 (y^3 +6)
O B. -4+9 (y^3 +6)
O c. (y ^3+ 6)
D. 6z^4 -4

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