(n*n)+n
9n + n = 10n
-n + 4n = 4n - n = 3n Done!!!!!
If you mean: -3(n+5) = 12 then n works out as -9 because -3(-9+5) = 12
2n2 + 15n + 7 = 2n2 + n + 14n + 7 = (2n2 + n) + (14n + 7) = n(2n + 1) + 7(2n + 1) = (2n + 1)(n + 7)
One lot of them.
2 plus n is the true one, but 1 plus n is not?
2
n plus 15.n plus 15.n plus 15.n plus 15.
They have n in common.
It is a linear equation in one variable, n.
31 plus n
3n.
It is a linear equation in one unknown variable, n. Its solution is n = 1
n = 28
If n + 7.1 = 8.6 then n = 8.6 - 7.1. Therefore, n is equal to 1.5, or one and a half.
Yes. Multiplying out the brackets on the second one: 4(n + 3) = 4×n + 4×3 = 4n + 12.