0 + 17, 1 + 16, 2 + 15, etc.; in fact there are infinitely many solutions.
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X - 5 = 17 Add 5 to both sides of the equation: X = 22
There's only one number that equals 17. It's 17.
Nine plus two equals 11 and when you add six to 11 you get 17.
If we add 51 and 17 (51 + 17), we'd get 68 for an answer. The number 51 is 50 + 1, and the number 17 is 10 + 7, taking the units digits, 1 + 7 equals 8, and 50 + 10 equals 60. Further, 8 plus 60 is 68, so the sum of 51 and 17 is 68.
Add the equations: 4a + 4a - 5b + 5b = 7 + 17 ie 8a = 24 a = 3, so b = 1