If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f+30=87
We move all terms to the left:
f+30-(87)=0
We add all the numbers together, and all the variables
f-57=0
We move all terms containing f to the left, all other terms to the right
f=57
| 25q+5(18-q)=210 | | u-58=706 | | 15t=-930 | | -8x+15=-24 | | -8x+15=24 | | (6x-78)=102 | | b-239=58 | | 995=r+5 | | 340=m-65 | | 738=c+312 | | d+35=58 | | d-38=8 | | 836=38*w | | 17+12=x | | 5^x+5^x+1-30=0 | | -48+3x=12(-3x-7) | | X^2=59=8x | | 7=4x-41 | | -23=x-46 | | 5/6c=3/5 | | 5x-8+3x+2=180 | | 19u=2.527 | | 48b=0 | | 5x=12+18x2^12/20-82+104-3x+(-8x) | | 1x-1=7 | | 6d=324 | | 0.5x-6=5.2 | | -10=-3y+5 | | -2(v-3)=-8v+24 | | -3r+17=-10 | | -3+-2b=1 | | -3+-2b=- |