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Q: What is 3n plus 7 equals 28?

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5n + 7 = 28 + 2n (-2n) 3n + 7 = 28 (-7) 3n = 21 therefore, n = 7

3n + 6 = n + 202n = 14n = 7

3n+1=7 3*2+1=7

4n

3n + 2n = 7 + 4n 5n = 7 + 4n 5n - 4n = 7 n = 7

n=-9.6

-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.

No. 3n is not a factor of 3n + 7.

3n + 4n = -14 7n /7 = -14 /7 n = -2

3n + 4 = 7(- 4 from both sides)3n = 3(divide both sides by 3)n = 1

No. 3n is not a factor of 3n + 7.

28

n = -6

3x + 7 = -4x + 28 implies 7x + 7 = 28

No. 3n isn't a factor of 3n + 7. The GCF of 3n + 7 and 9n is 1.

it is 28

3n + 4n = 42 7n = 42 n = 42/7 n = 6

7

3n + 7 = 163n + 7 - 7 = 16 - 73n + 7 - 7 = 16 - 73n = 16 - 73n = 93n/3 = 9/33n/3 = 9/3n = 9/3n = 3Check:3 x 3 + 7 =? 169 + 7 =? 1616 =? 16n=3 is the correct answer.

6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n

3n+5=2n+7 subtract 2n on both sides. n+5=7 subtract 5 to the other side. n=2 the answer to n is 2. Hoped that helped. (:

22

x=-5

x = 5

It is 12n2 + 3n - 58