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Agata [3.3K]
3 years ago
6

An aquarium at a pet store has 18 Black Neon Tetra fish in it . A customer buys 12 Black neon Tetra Fish at the same time the st

ore clerk adds 7 more Black neon Tetra fish are in the aquarium now ?

Mathematics
2 answers:
dangina [55]3 years ago
8 0

18-12+7

 6 + 7

13

Write an equation.

Subtract first- the customer buys 12 black neon tetra fish which means subtraction

addition- the store clerk puts in 7 more black neon tetra fish which means your gonna add 7




Maksim231197 [3]3 years ago
5 0

18-12. Add 7. Get 13. :)

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Step-by-step explanation:

Given the simultaneous equation;

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a = 29 + b ....3

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