If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-12r=-13r+15
We move all terms to the left:
-12r-(-13r+15)=0
We get rid of parentheses
-12r+13r-15=0
We add all the numbers together, and all the variables
r-15=0
We move all terms containing r to the left, all other terms to the right
r=15
| 12b+14=-2 | | 7d-12=22 | | 6.98x+25=48.7204+5x | | F(x)=-4x-36 | | X2+5x+4=10 | | -3x+1=2x+21 | | 3(2x+1)=7+2(4x-5) | | 10-v=2(v+17) | | 5(3x-2)=-50 | | j-10/2=4 | | -3x+1=2x=21 | | -12-x=2x+6+3x | | -15d+19d=-4 | | 3x-15/5=18 | | 4-3x=90 | | 453(x+5)=x | | 2x-10=4-28 | | 14/3=42/n | | 6.5x+50=180 | | 90x=6402.46 | | 11h+5=60 | | 9=-2x+8 | | 7z+9=2z-44 | | 11x-36=4x+83 | | -11c+4c=-14 | | n+1.5=6.4 | | -2r-9=r | | (5x-43)+(4x-11)=180 | | 1.6(x+6)=11 | | 9+15p=18p | | 2(n+5)(n+1)=0 | | 3z-10=18 |