# Algebra

4x +7 =18, then what is the value of 12x +21?

I don't know the value of x.

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2. 👎 0
3. 👁 64
1. 4x +7 =18

4x = 18 = 7
4x = 11

x = 11/4
x = 2.75

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2. 👎 0

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