8.5x + 9x = y
That is because you don't know how many hours they worked, so you can't how much money they made.
If you plugged in 4 hours for the x's you'll do something like this:
8.5 (4) + 9 (4) = y
34 + 36 = y
70 = y
That is how you would do it if you have the number of hours they worked.
Answer:
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Step-by-step explanation:
Answer:
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Step-by-step explanation:

Distribute 2 through the parentheses
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Collect like terms
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Move 8 to right hand side and change it's sign
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Add the numbers
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Divide both sides of the equation by 11
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Calculate
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Hope I helped!
Best regards!