need help with word problem

label Algebra
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schedule 1 Day
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the plumber charges $50 for the first visit plus $8 per hour of work. If the plumber's total bill is $290, how many hours did he work?

May 13th, 2015

Let x = hours worked

Then

8x + 50 = 290

8x = 240

x = 30 hours

May 13th, 2015

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May 13th, 2015
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May 13th, 2015
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