The sum of 3x plus 2 and -4 plus 3 is 3x+1 if the equation is (3x+2)+(-4+3). If they are two separate questions, 3x+2 remains as itself while -4+3=-1.
(2y + 1) + (y^2 + 1) = 2y + 1 + y^2 + 1 = y^2 + 2y + 2
The sum of 3/8 and 2/5 is 31/40
3x2 + 2x + 3 + x2 + x + 1 = 4x 2+ 3x + 4
5/6
The sum of 1/8 and 3/8 is 1/2
The sum of 2/3 and 1/2 is 1 1/6
The sum of 7/9 and 1/2 is 1 5/18
3/8 + 1/8 = 1/2
The sum of 1/2 and 2/5 is 9/10
if (n%2==0) sum=n/2*(n+1); else sum=(n+1)/2*n;
3/6 = 1/2, 12/12 = 1 So their sum is 1 1/2
Sum = 79*(79+1)/2 = 79*80/2 = 3160
The sum of 5/7 and 2/4 is 1 3/14
The sum of 7/8 and 2/5 is 1 11/40
The sum of 2/6 and 4/5 = 1 2/15
The sum of 4/5 and 1/2 is 1 3/10