Answer:
n=3
Step-by-step explanation:
First, you use the distributive property and do this first: 6(3n-3) which would be 18n-18. Then, you would multiply it with 2 to get 36n-18=90. Then, you add 18 to both sides which would make the equation 36n=108. Lastly, divide 108 by 36.
