SOLUTION: Solve: 4z + 9 = 7(z + 3) - 5z I'm not sure what the question is asking me to do, or how to do it. Can someone help me understand the equation and how to solve it?

Question 821594: Solve:
4z + 9 = 7(z + 3) - 5z
I'm not sure what the question is asking me to do, or how to do it. Can someone help me understand the equation and how to solve it?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Solve:
4z + 9 = 7(z + 3) - 5z
I'm not sure what the question is asking me to do, or how to do it.
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What question?
It's an equation.
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Question don't ask things, anyway. Questions are asked.
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Can someone help me understand the equation and how to solve it?
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Solve:
4z + 9 = 7(z + 3) - 5z
4z + 9 = 7z + 21 - 5z
4z + 9 = 2z + 21
2z + 9 = 21
2z = 12
z = 6

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