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Makovka662 [10]
3 years ago
5

Equation: A number decreased by 5 is equal to 10 (seperate eqaution) The sum of a number and 12 is the same as twice the number.

​
Mathematics
1 answer:
kirza4 [7]3 years ago
3 0

Answer:

1. 15

2. 12

Explanation:

1. n-5=10

n=10+5

n=15

2. n+12=2n

12=2n-n

12=n

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