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Algebra

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Rule for Sum of Positive Numbers

ALGEBR-SNMTKE

A positive number is added to a positive number. Which examples should a student use to find a general rule for finding the sum of two positive numbers?

A

$4+4$
$-4+-4$

B

$4+8$
$-4+-8$

C

$4+4$
$8+8$

D

$-4+-4$
$-8+-8$