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4-12n=-7 -12n=-7-4 -12n=-11 12n=11 n=11/12 n=0.916666666666666666...
Honey, to write 12 times n equals 108, you simply put it as 12n = 108. It's basic math, darling. Just divide both sides by 12 and you'll find out that n equals 9. Easy peasy lemon squeezy!
Im not sure if this is -12n or just 12n so I will give you both: -12n -19=77 n= -8 12n-19=77 n=8
12n
n = 0.25