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Math Help Evaluate 4r-4 when r=3 I'm not sure how to work this out, please show me in steps
asked
Jan 16, 2016
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Math Help
Evaluate
4r-4 when r=3
I'm not sure how to work this out, please show me in steps
Mathematics
high-school
Karadoc
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Karadoc
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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.
Webdesigner
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Jan 21, 2016
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