If it's not what You are looking for type in the equation solver your own equation and let us solve it.
65=13r
We move all terms to the left:
65-(13r)=0
We move all terms containing r to the left, all other terms to the right
-13r=-65
r=-65/-13
r=+5
| 2/n=6/(n+4) | | 4n+3=(n-5)+2 | | 4t-9=-2t-4 | | 7×+3+5x=63 | | 32x46=5 | | 32e46=5 | | 4x+60=x-28 | | x+2.52=5.29 | | u-2.95=1.5 | | u+3.17=7.64 | | 10w-1=8w+6 | | v-2.58=7.7 | | h-h/3=5 | | x2–6=30 | | r(r-3)=5 | | X^5+4x^2=-8 | | 3w-5=36 | | 8x-7= 12x-19 | | A=-49+21x | | 5x+8=x-10 | | 5(y-6=10 | | 5(x+9)=99 | | 10x+1=+4 | | x^2+5x-1764=0 | | 2x-11/5x+11=0 | | 2x-11x/5x+11=0 | | 17x-5=12x-10 | | x/3-74=89 | | 2x^2+5x-1500=0 | | /23x=8 | | 150/90+x=3/5 | | 1+4+3=x |