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5a-7a+3a=0
We add all the numbers together, and all the variables
a=0
| -9w-12+2w=28 | | O.4m-3=1 | | |2x+5|=|2x-7| | | 8x-9+3x=-31 | | 3-3u=-9 | | -18=2=4w | | 99+54+(10x-3)=180 | | 4(2-x=8 | | 24x-4/3x=10 | | 9+2x=7x-21 | | F(x)=15/2x+3 | | 7g-3=4g | | 2x-4=4x-1=8x-43 | | 5x-39+2x-11=90 | | -7+8+8x=7+x-1 | | 40x-x=15/2 | | x4+x=0 | | 3x3+x=0 | | 2y^2+7y+35=0 | | x3+x=0 | | (x3+x)=0 | | 360=40(x-10) | | 360=40(x-20) | | 3w-2+2(3w+3)=-6(w+1 | | (9x+20)=180 | | X-20=y+20=y-22=1/2X | | 360=(x-20)(40) | | 1/7y+5=-15 | | 3z/7+9=8 | | 125a=143 | | 5÷4a=10÷7 | | 5/4a=10/7 |