If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r=0.66
We move all terms to the left:
r-(0.66)=0
We add all the numbers together, and all the variables
r-0.66=0
We move all terms containing r to the left, all other terms to the right
r=0.66
| X/4-3/5/4/3-7x=-3/20 | | 2^x=16 | | 1+5×-2y=0 | | x=1/4x-1 | | F(1)=7x-3x^2 | | 33-4a=11a-4a | | 3t^2+27=0 | | 4-(x-1)=2(x+2) | | (5/6)^x2+3x-8=(5/6)^2 | | 4x^2+12x-523=0 | | 3x2–12x+24=0 | | 5(3-m)=4(m-6) | | (2x-1)^2=8 | | 3y-y+20=180 | | 3x/2=225 | | X^2+9y^2-6y+1=0 | | x+(3x-6)+2/3(3x-6)+2=168 | | 4t-3/3=7 | | 105^x=11 | | x(x+1)^2(x+2)=72 | | 25=2w-13 | | 5y-5=4 | | 10x^2=108 | | 28=3y-11 | | |5÷2x+4|+4=9 | | 84=4t | | x/x+1=99,9 | | 2x^2+31-17=0 | | 2m=(1/4)m-7 | | 9x-7+2x=4-(x+3) | | 5x-6+7x=4 | | 7x+3+45=180 |