If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r+403=320
We move all terms to the left:
r+403-(320)=0
We add all the numbers together, and all the variables
r+83=0
We move all terms containing r to the left, all other terms to the right
r=-83
| 4x-8=-44+8x | | g/3+18=21 | | M=(8x+10) | | 10q-7=11+9q | | x − 3 = 12 | | 3x-2+2x=18-5x | | -3x+20=26 | | 0.08x+0.09(9,000−x)=750 | | 828=9b | | 48/2+24x=1500 | | 20-3^6+8=x | | M=(4x+14) | | 40=3(x-1/3x) | | x+27=2x-6 | | X+11+13=2x+7 | | 4x-6=32x+5 | | 492=d+86 | | 3y-3y+3y=15 | | 8x²-5=-4x | | K-5-2k+7=14 | | v-586=26 | | 16x-16+x+17=9x+17 | | 41=12d−7-12d=41 | | 6t+1/9t-7=2t+6/3t-2 | | 3g-1+2g+3=2 | | 7(3x+1)=-19 | | -10=n/6-13 | | -8q-1=-9q+8 | | j/3+6=5 | | k-18=8 | | 5(5+k)=11 | | 48/6+8x=2700 |