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3 years ago

I NEED HELP ASAP PLZZZZ

Mathematics

1 answer:

KonstantinChe [14]3 years ago

7 0

Step-by-step explanation:

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

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

$a = 29$

$7(3) + ( - 4) = b$

$21 - 4 = 17$

$b = 17$

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