3n and n = 4? 3n ( the four replaces the n 3(4) = 12 =======
3n - 24 = 14 - 30n33n = 38n = 38/33
3n-5=13 +5 +5 3n=18 /3 /3 n=6
Let's give it a go:3n - 6 = 9Add 6 to each side of the equation:3n = 15Divide each side by 3:n = 5
4n - 7n = 21(4-7) n =21-3n = 21divide both sides by -3n = -7
3n x 3n = 9n if 9n = 36 then n = 36/9 = 4
3n -5 = 19 3n = 19+5 3n = 24 n = 8
-33
3n and n = 4? 3n ( the four replaces the n 3(4) = 12 =======
3n - 24 = 14 - 30n33n = 38n = 38/33
3n-5=13 +5 +5 3n=18 /3 /3 n=6
Let's give it a go:3n - 6 = 9Add 6 to each side of the equation:3n = 15Divide each side by 3:n = 5
21
4n - 7n = 21(4-7) n =21-3n = 21divide both sides by -3n = -7
-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.
-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4
x=18