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30+s=25
We move all terms to the left:
30+s-(25)=0
We add all the numbers together, and all the variables
s+5=0
We move all terms containing s to the left, all other terms to the right
s=-5
| 2x+7=3/4x-3 | | -v+93=8 | | -4+107=155+-10x | | k+13=60 | | 1/3x+1/3x=30 | | 4x-36=3x | | 4^c^-1=64 | | c+19=3 | | 3.3=x2.6 | | m-4/9=-267/90= | | y+-6.2=81 | | m-4/9=-267/890 | | –4t=12 | | .6x=-x | | 5/6+8/888888888=2229x-6 | | A=(8x-23) | | -0.5x+8=-12x-84 | | 9+y/10=39 | | 4.9x^2+18x-48=0 | | 37/100=-x/16 | | x+10.68=50 | | -19+4x=21+0x | | 37/100=x/12 | | 1.5x+7=1.3+8 | | x=-2(4x-3)=6-6x | | x+7=7x÷12=4 | | 3=x-50 | | 2(6x−5)−8=−22 | | n/10^1=4.6 | | 5/6+8/8888888888888=2229x-6 | | n/10^2=0.123 | | 19+r=65 |