If it's not what You are looking for type in the equation solver your own equation and let us solve it.
^2-7R-9=0
We add all the numbers together, and all the variables
-7R=0
R=0/-7
R=0
| 14g-9g-3g=10 | | (4n+6)(2n)60=180 | | -15x—14x=-20 | | 2x=x+4=x+16=x+10=2x=x+10 | | 15=d+2 | | 21=h+18 | | 17c=c+48+5c+40 | | c-3=c-38+c-37 | | 29=n+15 | | t-34+t-44=t+30 | | 17=k+7 | | x-17+x-39=x+47 | | p-25+p=p+42 | | 3x+x=4x24-6x | | 35=4s+s | | p-19+p=p+37 | | 25=13v | | 25=11v | | 20=4u+u | | 46=10q | | 46=3q+7 | | 24=c+16 | | 6(2x+3)+2=3x-2 | | 13=w+8 | | -3(v+4=-6(3v-1)+7v | | 2(2y)+10y=60 | | -3.5x^2+35x-80=0 | | C(x)=0.75x+9 | | 34=19x | | 22(x+150)+71x=26,565 | | 0.4x+0.7=0.9+0.5x | | 32=m+10 |