El área de una ventana rectangular es 6177 cm^2. Si la longitud de la ventana es 87 cm, ¿cuál es su anchura?

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

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20