Erin Is painting a block the shape of a square pyramid The length of one side of the base of the pyramid is 8 in the height of one side of the triangular sides of the pyramid is 12.3 in how much area does Erin need to cover with paint

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

i believe so, according to my "strange" way of figuring out weird math problems like this.