Yes.
The answer is 7
22
16+7m16+7(42)16+294310
3n + 4n = 42 7n = 42 n = 42/7 n = 6
42 72
The answer to 7 x 6 plus 9 is 51. You have to multiply 7 by 6 which equals 42 and add 9 onto it which equals 51.
42
7+2+5= 14 35 42
2 + 6 * 7 = 2 + 42 = 44
96
42 + 42 = 84
42 + x2 = 13x ∴ x2 - 13x + 42 = 0 ∴ (x - 6)(x - 7) = 0 ∴ x ∈ {6, 7}