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11/12 = n/13

       11(13)

n =

          12

Step-by-step explanation:

Incomplete problem statement.  Please write:

"Solve 11/12 = n/13."

To do this, rewrite 11/12 = n/13 as:

  11         n

=

  12       13

and then cross multiply.  We get:

12n = 11(13), and so, after dividing both sides by 12, we have

       11(13)

n = , which is the "solution" of 11/12 = n/13

          12

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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