3 years ago

What does -8mn + 9mn =

Mathematics

2 answers:

maks197457 [2]3 years ago

7 0

Answer:

1mn

Step-by-step explanation:

combine like terms

-8mn+9mn=1mn

FrozenT [24]3 years ago

4 0

Answer:

1mn

Step-by-step explanation:

it would of been - 1 if it was switched around but 9 is more than 8 but 9 is a higher number

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