any odd number is of the form 2n +1 so (2a+ 1) + (2b +1) gives 2(a + b) +2 , ie an even number plus 2 which is another even number
one number will be added
X-1
The number is 1 because (8 times1) + (-7) = 1
-3
1 Addedto a number,gives succsesor
5
What added to 7divided by10 gives 1 and 3divided by 10?
A natural number is doubled when added to its reciprocal. Find that number!
any odd number is of the form 2n +1 so (2a+ 1) + (2b +1) gives 2(a + b) +2 , ie an even number plus 2 which is another even number
1
one number will be added
1*1=1
1
X-1
Any irrational number added to 0.5 will produce an irrational number.
The number is 1 because (8 times1) + (-7) = 1