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wlad13 [49]
3 years ago
8

Simplify the expressions by combining like terms 4r + 9r - 11r + 7r

Mathematics
2 answers:
nataly862011 [7]3 years ago
7 0

Answer:

4r+9r+7r-11r

=20r-11r

=9r

konstantin123 [22]3 years ago
4 0
9r
Explanation:
4r + 9r = 13r
13r-11r = 2r
2r + 7r = 9r
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