13 + 42 = 55
42
2x - 13x + 42 = x +ax + b a + b = 2(x - 6.5x + 21) = 34 = a + b
3n + 4n = 42 7n = 42 n = 42/7 n = 6
4m + 9 + 5m - 5 = 42 9m + 4 = 42 9m = 38 m = 38/9
105.
42 + 42 = 84
42 and 42
13 + 42 = 55
It is: 38+4 = 42
28 + 42 = 70
15x26=390
7662
22
42
63 plus 47 plus 42 plus 21 is equal to 173.
42