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Gnesinka [82]
3 years ago
7

5x+9=84 please someone answer this^^!

Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0

Answer:

x=15

Step-by-step explanation:

5x=84-9

5x=75

x=75/5

x=15

Hope this helps :)

Alex73 [517]3 years ago
4 0
5x+9=84
5x = 75
x = 15
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now we sub y + 3 in for x in the other equation
14x - 2y = 78
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solution is (6,3)

it is always a good idea to check ur answer by subbing it into one or both of the equations to see if it is correct
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12 - 6 = 6
6 = 6 (correct)

so yes, ur solution is (6,3)
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