Math

3x + 9 = 7x - 11

How do I solve this?
You said subtract three x from each side, then all eleven to both side then divide each side by 10?

I'm confused...

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  1. If you followed those instructions, even without the typos, I'm sure you were confused!

    3x + 9 = 7x - 11
    subtract 3x:
    9 = 4x-11
    add 11:
    20 = 4x
    divide by 4:
    5 = x

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  2. thanks!

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