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Simplifying 2u + -9 = u + -8 Reorder the terms: -9 + 2u = u + -8 Reorder the terms: -9 + 2u = -8 + u Solving -9 + 2u = -8 + u Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-1u' to each side of the equation. -9 + 2u + -1u = -8 + u + -1u Combine like terms: 2u + -1u = 1u -9 + 1u = -8 + u + -1u Combine like terms: u + -1u = 0 -9 + 1u = -8 + 0 -9 + 1u = -8 Add '9' to each side of the equation. -9 + 9 + 1u = -8 + 9 Combine like terms: -9 + 9 = 0 0 + 1u = -8 + 9 1u = -8 + 9 Combine like terms: -8 + 9 = 1 1u = 1 Divide each side by '1'. u = 1 Simplifying u = 1

| 2x^2-2(x-2)=20 | | (4u-7)-(-13u+8)= | | 3(d+3)=15 | | 3x+3=9x | | 2.5h-15=4j | | 3y-7=-2 | | 6x+35+x=15(x+4)-25 | | 2(a-6)=36 | | -4.2=1.7+x | | 0.4x-0.3y=1.4 | | 4.2=1.7+x | | -0.2x-0.3=0.2 | | x^2+4kx+5k=0 | | 3(x+5)+x=-7 | | 2f+4=9 | | -18+8x=5x+36 | | 5n+3n+7=15 | | 2(9x-50)=3-3(x+8) | | 8x-82=107+x | | c+8=2(c+2) | | -3.5=2.7+x | | .6a-.2a-3=17+.08a | | 6+17x-2=9x+94-2x | | 3.3+3.5=5(x-1)+3x | | 12x+16=5x | | 5x-3(x-2)=26 | | 5a-4=11 | | z=4x+5y | | 9x-38=6x+22 | | 4n-7= | | 73+11-5m-2=2m-9 | | -7x+2=75 | | (x+2)+(9x-22)=180 | | -7x-2=75 | | 2x+3x-4+5x+14+10x+4=1080 | | 17x-8=3+16 | | (2x-28)=(x+3) | | 4x-2=6x-46 | | X+4.7=8.1 | | 2+-1ln+3lnx=0 | | y+3=1(x-1) | | (8x+1)+(2x+9)=90 | | 4(x-1.1)=8.8 | | 6x-67=141-10x | | 7x^2+53x+8=0 | | z^2+(z+2i)z+3+2i=0 | | y+3=-1x-1 | | (13x-20)=(9x+32) | | y+3=-1-1 | | -4x+24=-48x+8x | | (4x+40)=(8x+8) | | (3+3)(6+8X)=10-3.5(X+1) | | 5X-1.8=-X+2.4 | | z^3-3z^2+6z-4=0 | | m^3+m^2+m+1=0 | | 4(5x+3)=152 | | 2y+3y+8=23 | | 4(5x+12)=152 | | 4+66x=33x+31 | | (4+2x)=8(x+9) | | (x^4-x+y)dx-xdy=0 | | 17x-45+3(3-3x)=2(12x-7)-3(-3x-7) | | 2w+5(5+w)=42 | | -16x+y=52 | | -1+3x=-3x+17x |

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