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r-3(r-9+4=5
We move all terms to the left:
r-3(r-9+4-(5)=0
| 9x+2(2x+3)=10x+7x | | 24/48=10/x | | 2x^2+9x+16=0 | | 9x+2(2x+3)=18+-9 | | 9x+2(2x+3)=10+-10 | | -90-4x=27+5x | | 4y-4=5y-2y | | -6=2/15x | | 5y-2=40 | | 1=5x+20-9x+5 | | 9x+2(2x+3)=-3+7 | | 17x=7-2 | | 1500=(8x)12 | | 9x+2(2x+3)=4x-6 | | F(x)=x^2-3x-108 | | 120/x+10=5 | | x²-8x+20=13 | | 1/2=3-5x | | 8x-6x-9+54=8x-10 | | 30x+4=-20x-1 | | 3x^-4-2x^-3-1/x^-2=0 | | -2-5=-2x-28 | | 0.3*(10x+15)=4.3*(0.2x+5) | | 13y-38+9=180 | | -10+|-6-x|=-1 | | ‐3x=21 | | 8x–(2x–3)=9 | | 9x+2(2x+3)=-6+15 | | 9x+2(2x+3)=5x+-10 | | 144.375=(9x+12) | | 9x+2(2x+3)=14x+12x | | |w+0.5|=27.5 |