If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.3r=1.8
We move all terms to the left:
0.3r-(1.8)=0
We add all the numbers together, and all the variables
0.3r-1.8=0
We move all terms containing r to the left, all other terms to the right
0.3r=1.8
r=1.8/0.3
r=6+2.2204460492503E-16/0.3
| 10=3d/5 | | x-3=0,X= | | 15p+5p=60 | | 8x-49=8x-49 | | 4+2(1-x)/5=-6 | | (3x-1)/4=-1/5 | | 12-8p=-9-5p | | 10+2n=10+7n | | Y=5×n+0 | | n=5×n+0 | | -7b+10=-5b-8 | | 15x-2x+18=22+6x | | 7+6n=7n+8 | | 15=5+6x-4x;x= | | 22+4x=7+9x | | 11+7x=15+4x | | |x-12|=21 | | x+12=9+5x | | 5/x^2-x-2-2/x^2-4=4/x^2+3x+2 | | 3x-8/9+3x+7/18=-4 | | 2x+18=7+7x | | 8x2−7=193 | | 17+4x=9+x | | 5(2x+3)=8(x-3) | | 5k+17=3=4X | | 72/7x+726=240 | | x+5=2(6x) | | -14/x^2-x-12-1/x-4=1/x+3 | | 2x+29=18x-35 | | 6x=2(x+5) | | 3=3/x-1 | | 108=-9(x+2 |