krissy452
18.11.2019 •
Mathematics
The sum of 6 times a number and 2 us multiplied by 3. the answer is 9 more than 3 time the number.
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Ответ:
The Answer is: 1/5
Step-by-step explanation:
Let n = the number
Six times the number plus two times three is equal to three times the number plus 9:
3(6n + 2) = 3n + 9
Solve for n:
18n + 6 = 3n + 9
18n - 3n = 9 - 6
15n = 3
n = 3/15 = 1/5, The Number is 1/5
Proof:
3(6n + 2) = 3n + 9
3(6(1/5) + 6) = 3(1/5) + 9
3(6/5 + 6) = 3/5 + 9
18/5 + 18 = 9 3/5
98/5 = 9 3/5
9 3/5 = 9 3/5
Hope this helps! Have an Awesome Day!! :-)
Ответ: