The answer is 81. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
Sum = 79*(79+1)/2 = 79*80/2 = 3160
79 + 79 = 158 / 2 = 79.
81
2 plus to = 2 + to and there is not much else you can do with that.
79, -79
The mathematical addition problem 2 plus 2 is equal to 4.
whats the answer for -2x^3+2^2+12x
4+2=6
The answer to 1 plus 2 plus 3 plus 4 plus 0.78 plus 79 plus 80 is 169.78. This can be calculated by adding all the numbers together: 1 + 2 + 3 + 4 + 0.78 + 79 + 80 = 169.78.
9h + 2 = -79 9h = -81 h = -81/9 h = -9
9h + 2 < - 79 9h < - 81 h < - 9
42 + 79 = 121 (40+70) + (2+9) = = 110 + 11 = 121