3n + 4n = 42 7n = 42 n = 42/7 n = 6
It is a linear equation in one unknown variable, n. Its solution is n = 1
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
10n + 3 = 7n + 53n = 2n = 2/3
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
7n + 2 = 4n + 17Subtract 2 from each side:7n = 4n + 15Subtract 4n from each side:3n = 15Divide each side by 3:n = 5
4n + 3y
-2.18
I assume you mean what is the solution for the value of n. 4n+11-7n = -13 -3n = -24 n=8
3n - 9 + 4n = 8nCombine like terms:7n - 9 = 8nSubtract 7n from both sides:-9 = n
3n + 4n = 42 7n = 42 n = 42/7 n = 6
3n + 4n = -14 7n /7 = -14 /7 n = -2
3n+18 = 39 -4n 3n+4n = 39 -18 7n = 21 n = 3
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
It is a linear equation in one unknown variable, n. Its solution is n = 1
Subtracting 3n from each side gives 12 = 4n or 4n = 12. n = 12/4 n = 3
4n - 7n = 21(4-7) n =21-3n = 21divide both sides by -3n = -7