When n = 4, 3n = 3*4 = 12
To find the answer to 3n + 15 for n = 4, you substitute 4 in place of n in the expression. So, 3(4) + 15 = 12 + 15 = 27. Therefore, the answer to 3n + 15 for n = 4 is 27.
3n+2+3n+2=6n+4
In 3n-1 equals 11, n is 4.3n - 1 = 113n - 1 + 1 = 11 + 13n = 123n/3 = 12/3n = 4
The coefficient of '3n' is 3; n is the VARIABLE; n is often chosen for 'number'.
3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (3n + 3 - 3n + 1) = 3n + 2 + (4) = 3n + 6
When n = 4, 3n = 3*4 = 12
3n and n = 4? 3n ( the four replaces the n 3(4) = 12 =======
3n^4 divided by 3n^3 = n
3n + 4 = 7(- 4 from both sides)3n = 3(divide both sides by 3)n = 1
4n = 3n + 44n - 3n = 3n - 3n + 4n = 4check:4n = 3n + 44(4) =? 3(4) + 416 =? 12 + 416 = 16 True
2 + 3n = 4subtract 2 from each side2 - 2 + 3n = 4 - 23n = 2divide both sides integers by 3(3/3)n = 2/3n = 2/3=========check in original equation2 + 3(2/3) = 42 + 6/3 = 42 + 2 = 44 = 4=======checks
4/3=1 1/3
3n+2 + (3n+3 - 3n+1) = 3n+1+1 + (3n+1+2 - 3n+1) = 3*3n+1 + (9*3n+1 - 3n+1)= (3+9-1)*3n+1 = 11*3n+1.
-3n + 4 = 2Subtract 4 from each side ==> -3n = -2Divide each side by -3 ==> n = 2/3
Let the number be n. Then 3n + 2 = -4 3n = -6 n = -3
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n