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8+5a=a

We move all terms to the left:

8+5a-(a)=0

We add all the numbers together, and all the variables

4a+8=0

We move all terms containing a to the left, all other terms to the right

4a=-8

a=-8/4

a=-2

| 3(w-2)+7w=-16 | | 3.5x+8=-9+3.5x | | 14x÷2=9 | | h-14=11-9 | | (5x+62)°+37°+(3x+47)°=180 | | 5/x=3.8 | | 2x+8=-4x+11 | | -2x÷3(+9)=2 | | x4+4x3+x2-6x+2=0 | | 10x-3x=35. | | -40/56=k/7 | | 40+x=3x?3 | | 3=0.5g-12 | | x-2=12* | | 2(1.5+-0.5y)+y=3 | | h-19=11-14 | | 4x-10=-5x+2 | | 288=2x^2 | | 6(2x-4)=21+6x | | 6e-5/3=4/3 | | 2(3x+4=x+6 | | m2=(m3+m+5) | | A=x°,B=47°,C=95° | | -2(x-5)-(16-x)=4(2x-1)+7 | | (3x-8)=(-2x-1) | | 12+p-8=6 | | Y=2(1/5y)-15 | | Y=5(1/5y) | | 10–70+2x=10 | | 3x-16+2x=4x+15 | | 5x+51+4x+19=180 | | 7/z+1/3=-5/6 |

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