10n + 3 = 7n + 53n = 2n = 2/3
5(n2 + 2n + 4)
5n - 4 = 10n + 6-5n = 10n = -2
8m + 3n - 5m + 10n = 3m +13n
10n = 7n + 4 + 2n so 10n = 9n + 4 Subtract 9n from both sides: n = 4
10n + 3 = 93 Therefore, 10n = 90 n = 90/10 n = 9
2m + 13n
2 x 5 x n = 10n
10n+12 = 14n-12 10n-14 = -12-12 -4n = -24 n = 6
7 twos
Assuming the spaces would have held plus signs... (0.5n + 5) times 2 is n + 10 (n + 10)(10n + 7) is 10n^2 + 107n + 70 You can either add three to that (+ 73) or multiply it by three 30n^2 + 321n + 210
9n + n = 10n