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- Anonymous9 months ago
The first is an equation,

the second is a variable.

- Anonymous9 months ago
x is the letter right next to the 9.

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- 9 months ago
9x - 4 = 5

Isolate for x:

9x = 5 + 4

9x = 9

Divide both sides by to isolate x once again:

x = 9/9

x = 1

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