Evaluate the following expressions

4r-4 when r= 3

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The expression is: (4r – 4)

The expression can be evaluated at any real value of r, simply by putting the value of r in it.

Thus when r=3,

(4r – 4)

= 4*3-4

= 12-4

= 8

**Therefore, the value of (4r-4) at r=3 is 8.**

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