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Simplifying 3 = -5(4x + 2) + 21x Reorder the terms: 3 = -5(2 + 4x) + 21x 3 = (2 * -5 + 4x * -5) + 21x 3 = (-10 + -20x) + 21x Combine like terms: -20x + 21x = 1x 3 = -10 + 1x Solving 3 = -10 + 1x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x' to each side of the equation. 3 + -1x = -10 + 1x + -1x Combine like terms: 1x + -1x = 0 3 + -1x = -10 + 0 3 + -1x = -10 Add '-3' to each side of the equation. 3 + -3 + -1x = -10 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = -10 + -3 -1x = -10 + -3 Combine like terms: -10 + -3 = -13 -1x = -13 Divide each side by '-1'. x = 13 Simplifying x = 13
| U(x)=-0.1x^2+200x+10000 | | x^2+15x-6750=0 | | x^2+15m-6750=0 | | U(x)=-0.1x^2+200x+1000 | | 2(5-2c)= | | 9x+1=7x+27 | | 3(2x-6)=8 | | 3x+8y=71 | | 4(2c+3)=13 | | 9x-(4x-18)=63 | | x^2+2x-1599=0 | | -5X+21=1 | | 2w-2=2w-9 | | -13d+21=8d | | 3(4x-8)-20=10(x-3)+4 | | 32-[5+8y-2(y+2)]=-5(4y-4)-[8(y-1)-16y+15] | | (x+1)=-2(5-x) | | -5/22(-55/30)= | | -3x=-10x-7 | | 8x-5=7+11x | | 2(n+5)=8 | | 3m=2m-6 | | 2w+10=2w+10 | | 2x+16+x=40 | | 22k+3900=61 | | x+16+x=40 | | 3t^2+81=0 | | 25a+ab=5b | | 4x^2+24x+47=0 | | 9x-(4x+5)+(3x+3)= | | 2x-16+x=40 | | 0.04x+0.06(20-x)=0.05(50) |