Question

7j+7]-9j+10j *
Simplify the expression by combining like terms

Answer 1

15j

Explanation:

I'm assuming 7] means 7j and to ignore the asterisk. The equation is in terms of j so you can just pay attention to the number before it, 7+7-9+10=15. But since it's in terms of j the answer is 15j

Answer 2

15j

Explanation:

7j+7j-9j+10j

=14j-9j+10j

=5j+10j

=15j

i think the bracket was supposed to be a j