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goldenmonkey1997
goldenmonkey1997 goldenmonkey1997
  • 10-12-2015
  • Mathematics
Answered

Math Help

Evaluate

4r-4 when r=3


I'm not sure how to work this out, please show me in steps

Verified Answer :

Zebruh
Zebruh Zebruh
  • 10-12-2015

4r-4
4(3)-4
4 multiplied by 3 subtracted by 4
4(3) = 12-4
12 + (-4)
the subtraction changes to addition making the 4 negative.
12 + (-4) = positive 8.
I'm not positive this is 100% correct though.

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