Q: What is the answer of this questions 7n equals 28?

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7n = 91n = 91÷7n = 13

(10, 2)

7n = 7 divide by 7 on both sides n = 7

6m + 5n - 4m + 7n = 2m + 12n

22n + 2.

Related questions

7n = 91n = 91÷7n = 13

(10, 2)

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

7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)

2 - 7n = 6therefore 7n = 2 - 6 = -4 and so n = -4/7 Then 5m + 7n = 6.4 becomes 5m - 4 = 6.4 so that 5m = 10.4 and then m = 10.4/5 = 2.08

7n = 7 divide by 7 on both sides n = 7

9n-2=7n+50 7n+9n=50+2 16n=52 n= 3.25

n(7n-3) = 0 n = 0 or n = 3/7

6m + 5n - 4m + 7n = 2m + 12n

63

N would equal 7

7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)