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Q: 3n plus 8 equals 20 what is n?

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8 + 3(6) = 8 + 18 = 26

4n-8=3n+2 4n=3n+2+8 4n=3n+10 4n-3n+10 n=10 N = 10

3n + 14 = 83n = 8 - 14 = -63n/3 = -6/3n = -2The value of n is -2.

20

-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4

1 plus 19 equals 20 2 plus 18 equals 20 3 plus 17 equals 20 4 plus 16 equals 20 5 plus 15 equals 20 6 plus 14 equals 20 7 plus 13 equals 20 8 plus 12 equals 20 9 plus 11 equals 20 10 plus 10 equals 20 1 times 20 equals 20 2 times 10 equals 20 4 times 5 equals 20

Addition is commutative. That is, a + b = b + a for all a, b

20

3,6,9,12

-8 + 19 = 11

6-4-8-2=20 is the answer

8

y equals negative 8.

It is the property that equals plus equals are equals.

3n -5 = 19 3n = 19+5 3n = 24 n = 8

3x + x + 8 = 204x + 8 = 204x = 12x = 3

(3n-2)/8 = (n+4)/55(3n - 2) = (n+4)815n - 10 = 8n + 327n = 42n = 6

x=3

20

20. unless this is a trick question.

A = 77 + 5 + 8 = 20

20 + (9 - 8)*2 = 22.

8

2n(3n + 8)

It equals 2 hours and 2 minutes.