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nekit [7.7K]
2 years ago
10

I NEED HELP ASAP PLZZZZ

Mathematics
1 answer:
KonstantinChe [14]2 years ago
7 0

Step-by-step explanation:

We just subsitue 3 for x and -4 for y, so we get

3(3) - 5( - 4) = 9 + 20 = 29

So

a = 29

7(3) + ( - 4) = b

21 - 4 = 17

b = 17

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