what is 2/3 of 18
For every 3 steps forward, you have to take 2 steps back, if there are 10 steps in total for the stairs, how many steps in total d...
15x-5=10x+5-3
If X+Y = 10 and X-Y = 40 then X = 25 and Y = -15
2 5/33
2+2
8 1/3 DIVIDED BY 2 2/5
8 1/2 DIVIDED BY 2 2/5
4x+5/3+2x=3/2
4. For which three numbers a will elimination fail to give three pivots?
ax+2y+3z=b_1;ax+ay+4z=b_2;ax+ay+az=b_3