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Simplifying x(9x + -9) = (9x + 5)(x + -1) Reorder the terms: x(-9 + 9x) = (9x + 5)(x + -1) (-9 * x + 9x * x) = (9x + 5)(x + -1) (-9x + 9x2) = (9x + 5)(x + -1) Reorder the terms: -9x + 9x2 = (5 + 9x)(x + -1) Reorder the terms: -9x + 9x2 = (5 + 9x)(-1 + x) Multiply (5 + 9x) * (-1 + x) -9x + 9x2 = (5(-1 + x) + 9x * (-1 + x)) -9x + 9x2 = ((-1 * 5 + x * 5) + 9x * (-1 + x)) -9x + 9x2 = ((-5 + 5x) + 9x * (-1 + x)) -9x + 9x2 = (-5 + 5x + (-1 * 9x + x * 9x)) -9x + 9x2 = (-5 + 5x + (-9x + 9x2)) Combine like terms: 5x + -9x = -4x -9x + 9x2 = (-5 + -4x + 9x2) Add '-9x2' to each side of the equation. -9x + 9x2 + -9x2 = -5 + -4x + 9x2 + -9x2 Combine like terms: 9x2 + -9x2 = 0 -9x + 0 = -5 + -4x + 9x2 + -9x2 -9x = -5 + -4x + 9x2 + -9x2 Combine like terms: 9x2 + -9x2 = 0 -9x = -5 + -4x + 0 -9x = -5 + -4x Solving -9x = -5 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. -9x + 4x = -5 + -4x + 4x Combine like terms: -9x + 4x = -5x -5x = -5 + -4x + 4x Combine like terms: -4x + 4x = 0 -5x = -5 + 0 -5x = -5 Divide each side by '-5'. x = 1 Simplifying x = 1
| t^3+2t^2-3t= | | 1.2=2.4-3X | | 5x+7(x-9)=5(x-7) | | 7x^2=7-4x | | 1+4n=7n+4 | | 5x-12=-3+2x-6 | | 3(x-6)-5(x+2)=-14 | | 2x+(x-24)=90 | | 6s-18=-10+8s | | -2.6x=43.42 | | 12=7-x | | 3a^3+14a^2-5a= | | 102-21= | | 4z-14=-9+5z | | 10(v+2)-4v=2(3v+1)-5 | | 5x-(3x+5)=4x-31 | | 98+(-7x)=0 | | 98+(-7x)=280 | | 200=10x+50 | | 5x-(3x+5)=4x+31 | | -6(v+2)+2v+6=6v+8 | | 2(5t-2)=20-2t | | 81s^2-25=0 | | t^4-16= | | 6(2x-2)=48 | | 145+4x=137 | | (8x+7)(x^2+9x+3)=0 | | 145+4x=237 | | x^4+26x^2+25=0 | | 145+4x=181 | | 2(4+5x)=9(x-1) | | 245+4x=181 |