4 years ago

(10 POINTS AND BRAINLIEST FOR BEST)

Mathematics

2 answers:

Lana71 [14]4 years ago

8 0

Answer:

+4-7=-3 is the answer mate

Ira Lisetskai [31]4 years ago

6 0

Answer:

4 - 7 = -3

Step-by-step explanation:

A number sentence is a mathematical sentence, made up of numbers and signs. Therefore the number sentence to represent the model is: 4 - 7 = -3 because there are 4 positive charges and 7 negative charges, which make a 3 negative net charge

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