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1 vote
55=3(2n-1)+2(n+5)

what is the value of ‘n’

please show steps on how to solve the problem

User OhmzTech
by
7.5k points

2 Answers

2 votes
n = 6

Starting with the equation:

55 = 3(2n - 1) + 2(n + 5)

Expanding the parentheses on the right side:

55 = 3(2n - 1) + 2n + 10

Combining like terms:

55 = 3(2n - 1) + 2n + 10

55 = 2n + 3(2n - 1) + 10

55 = 2n + 6n - 3 + 10

55 = 8n + 7

Finally, solving for 'n':

55 - 7 = 8n

48 = 8n

n = 6.
User Bledar
by
8.3k points
6 votes

Explanation:

55=3(2n-1)+2(n+5)


DISTRIBUTE [PEMDAS]

3(2n-1) = 6n - 1

2(n+5) = 2n + 10

COMBINE LIKE TERMS

55 = 6n - 1 + 2n + 10

THEN SUBTRACT FROM BOTH SIDES

55 = 9n + 9
-9 -9

DIVIDE ON BOTH SIDES

46 = 9n

FINAL ANSWER


(49)/(9) = n
hope this helps :)

User Michael Burger
by
7.6k points