0.8×7
subtract mixed numbers
16 3/6 - 10 2/5
3/5 divided by 1/9
3cos(X)-cos(2X)=0.0047
solve for X
5x+3=15+8
x^2-x-3/4
5267+178=
(3 + √2) + √2
7323992.0699
6964353.8137
1428834516274.359639
146479841398.13928706
2857669017672.719278
2929596814876.27857412