3 years ago

Please HELPPPPP!!! I DONT KNOW WHY IM GETTING THEM WRONG

Mathematics

1 answer:

Nady [450]3 years ago

3 0

Answer:

n = -33

Step-by-step explanation:

Let n = number

Sum of a number and 9

(n+9)

is tripled

3(n+9)

the result is six less then twice the number

2n-6

3(n+9) = 2n-6

Distribute

3n+27 = 2n-6

Subtract 2n from each side

3n-2n +27 = -6

n +27 = -6

Subtract 27 from each side

n+27-27 = -6-27

n =-33

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