-30=-2(-n + 3)

Only number not variable

n=12

Step-by-step explanation:

I'm assuming you want to solve for n

First, you must use distributive property:

-30=-2n-6

Then, add 6 to both sides

-24=-2n

Finally, you must divide by -2

12=n

step-by-step explanation:

where is the questions

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.