The problem has one solution.
The given problem is 2/3(6j + 9) = 3j + 7
In order to determine the number of solutions, take the following steps:
Expand the bracket on the left:
(2/3 x 6j) + (2/3 x 9)
4j + 6
4j + 6 = 3j + 7
Combine similar terms :
4j - 3j = 7 - 6
Add similar terms
j = 1
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