What expression is equivalent to -9r + 4r

Mathematics

1 answer:

Monica [59]2 years ago

6 0

Answer:

−9r+4r

=−9r+4r

=−r+−r+−r+−r+−r+−r+−r+−r+−r+r+r+r+r

=−r+−r+−r+−r+−r

=−5r

Step-by-step explanation:

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