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Svetach [21]
2 years ago
11

2n +9+5n=30 need help on this

Mathematics
2 answers:
Rus_ich [418]2 years ago
8 0
2n+9+5n=30  combine like terms on left side

7n+9=30  subtract 9 from both sides

7n=21  divide both sides by 7

n=3
sveticcg [70]2 years ago
8 0
N = 3

add like terms: 7n + 9 = 30
subtract 9 from both sides: 7n = 21
divide 7 from both sides
n = 3
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