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kondor19780726 [428]
3 years ago
15

Help me now plsss! can't think this one out.

Mathematics
1 answer:
ra1l [238]3 years ago
8 0
She worked 30 hours per week.

The problem turns out to be the following:
2x+15=3x-15.
First you need to have only one x variable so you subtract the X's:
3x-2x=X
The problem now turns into 15=x-15.
You have to isolate the X so you do x+15. You have to do the same to the other side so 15+15=30, therefore x=30
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