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What is the value of the expression 1 – r – a when r = 20 and a = 6? A. –27 B. –25 C. –15 D. –13
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#confuseing
B
@JoannaBlackwelder
Substitute the values for the variables in the expression and let me know what you get.
???
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1 – 20 – 6
@JoannaBlackwelder
the answer is B
yea but i wanna know how to solve it
Yep, good!
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And simplify.
20-7
No, work from left to right. What is 1-20?
19
Close, the larger number is negative, so the answer is negative.
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-19
Yep. Then what is -19-6?
-13
No, a is positive 6, so it is -19-6
*facepalm XD
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It's cool :-)
:)
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