If it's not what You are looking for type in the equation solver your own equation and let us solve it.
13=r/3+11
We move all terms to the left:
13-(r/3+11)=0
We get rid of parentheses
-r/3-11+13=0
We multiply all the terms by the denominator
-r-11*3+13*3=0
We add all the numbers together, and all the variables
-1r+6=0
We move all terms containing r to the left, all other terms to the right
-r=-6
r=-6/-1
r=+6
| 35/0.30x=30/0.25x | | 4y+2=2y+6=10y−12. | | 1*3x=2x+8 | | 2x+11+4x+10=90 | | 4x–6=26 | | -14x–100+20+7x=11x+152 | | 0.2x+0.45(70)=47.5 | | 51=5m-34 | | -3p+5(p+3)=28 | | -11+r=1-r | | 2. -14x–100+20+7x=11x+15 | | 1/2(6×-4)=-5x+1 | | 3.2+10m=8.76 | | 2x+3(x-4)=2(x+6)+x | | 3=4p-3 | | 7m-203-36m-42=42 | | Xx0.75=8 | | 5m-7=10m+8 | | (2x+1)/12+1/3=(5x+2)/6 | | -d+d+-d=15 | | -41=5(4+8x)+7(8x+5) | | v/3+9=11 | | 5=r/4+2 | | -3x-10=10x-13 | | -2k+5k=k+10 | | -3x-10=1x-13 | | -3x-10=2x-13 | | -2(n+1)+4(1+3n)=-38 | | -2+5k=k+10 | | -3x-16=3x-13 | | e+12=3e | | -6y+-4y—14y+-10y=18 |