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Nataly_w [17]
3 years ago
9

Please help! 30 points !!

Mathematics
1 answer:
GenaCL600 [577]3 years ago
3 0

Answer:

1. C

2. C

Step-by-step explanation:

1. 5x+12=57

Subtract 12 from both sides

5x=45

Divide both sides by 5

x=9

2.  7-4x=12-3x

Combine like terms =

-4x+3x=-12-7

x=-12-7

x=19

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Similarly, for the second one:

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