If it's not what You are looking for type in the equation solver your own equation and let us solve it.
1017.36=3.14r*r
We move all terms to the left:
1017.36-(3.14r*r)=0
We add all the numbers together, and all the variables
-(+3.14r*r)+1017.36=0
We get rid of parentheses
-3.14r*r+1017.36=0
We move all terms containing r to the left, all other terms to the right
-3.14r*r=-1017.36
r=-1017.36/1
r=-1017.36
| -96=-4(3a+3) | | -8(2k-8)+6=-186 | | X-9x=-18 | | -6(6k+7)+8k=-126 | | 8(2k-8)+6=-186 | | 70+74+4v=180 | | -252=6(6k+6) | | -96=7a-5(-2a-8) | | 6-(-5x+6)=4+6 | | 9x+9=7×+6 | | 9x+20+7x+6x=180 | | x+50+3x+2x+40+4x=360 | | 9x=6×6 | | 2(x+3)-6=1 | | 4-(x+9)=2-8 | | 3x-7=6x+4 | | F(x)=3x^2+5x-10 | | 46=16-6(-1-2w) | | -n+6=-10 | | 1/6x=3x-136 | | 2(r+9)=4 | | (r+9)=4 | | 2=7/y+2 | | x=114+5x | | x=114=5x | | -5+23x=140 | | 5x-8+x=16 | | -5x+23+-5x+23+140=360 | | 2y=2y+60 | | -5x+23=70° | | 24-3x=16-5 | | 8x-16/8x=16 |