Which will solve the equation 12 = n — ?
9

A Add 12 to both sides.
B Add 9 to both sides.
© Multiply both sides by 12.
D Multiply both sides by 9.

Step-by-step explanation:

12=12n

We move all terms to the left:

12-(12n)=0

We move all terms containing n to the left, all other terms to the right

-12n=-12

n=-12/-12

n=1

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =

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