Sharon is paving a rectangular concrete driveway on the side of her house. The area of the driveway is 5x2 + 43x − 18, and the length of the driveway is x + 9. Additionally, Sharon plans to install a carport over a small portion of the driveway. The volume that the carport can enclose is 48x3 + 68x2 − 8x − 3, and the area of driveway beneath the carport is 8x2 + 10x − 3.

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step-by-step explanation:

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

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step-by-step explanation: