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Simplifying (2x + 3)(x + -4) + -3x(2) = x(2x + -4) Reorder the terms: (3 + 2x)(x + -4) + -3x(2) = x(2x + -4) Reorder the terms: (3 + 2x)(-4 + x) + -3x(2) = x(2x + -4) Multiply (3 + 2x) * (-4 + x) (3(-4 + x) + 2x * (-4 + x)) + -3x(2) = x(2x + -4) ((-4 * 3 + x * 3) + 2x * (-4 + x)) + -3x(2) = x(2x + -4) ((-12 + 3x) + 2x * (-4 + x)) + -3x(2) = x(2x + -4) (-12 + 3x + (-4 * 2x + x * 2x)) + -3x(2) = x(2x + -4) (-12 + 3x + (-8x + 2x2)) + -3x(2) = x(2x + -4) Combine like terms: 3x + -8x = -5x (-12 + -5x + 2x2) + -3x(2) = x(2x + -4) Reorder the terms for easier multiplication: -12 + -5x + 2x2 + -3 * 2x = x(2x + -4) Multiply -3 * 2 -12 + -5x + 2x2 + -6x = x(2x + -4) Reorder the terms: -12 + -5x + -6x + 2x2 = x(2x + -4) Combine like terms: -5x + -6x = -11x -12 + -11x + 2x2 = x(2x + -4) Reorder the terms: -12 + -11x + 2x2 = x(-4 + 2x) -12 + -11x + 2x2 = (-4 * x + 2x * x) -12 + -11x + 2x2 = (-4x + 2x2) Add '-2x2' to each side of the equation. -12 + -11x + 2x2 + -2x2 = -4x + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -12 + -11x + 0 = -4x + 2x2 + -2x2 -12 + -11x = -4x + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -12 + -11x = -4x + 0 -12 + -11x = -4x Solving -12 + -11x = -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. -12 + -11x + 4x = -4x + 4x Combine like terms: -11x + 4x = -7x -12 + -7x = -4x + 4x Combine like terms: -4x + 4x = 0 -12 + -7x = 0 Add '12' to each side of the equation. -12 + 12 + -7x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + -7x = 0 + 12 -7x = 0 + 12 Combine like terms: 0 + 12 = 12 -7x = 12 Divide each side by '-7'. x = -1.714285714 Simplifying x = -1.714285714
| 9n+14=6n+21 | | 6-2[3-(7y-4)]= | | f(5x)=x^2-11 | | 8(6y-4)-(3y+6)= | | (5y+4)(9-y)=0 | | http://media.apexlearning.com/Images/200905/05/0b5cd471-3b53-4d59-9038-15df02530afe.gif | | 8x+24-5x+9=7 | | 8m-3=-52 | | 3(3x+4)+6(x-4)= | | 8x=2y+5 | | 4y+5=2y-6 | | 2y-5=y+17 | | 3+19m-2=9m+27-3m | | 2003-02-02-00-00_files/i0200000.jpg? | | 5+2p-(4+p)= | | 7b=2b | | Ek=1/2mv2 | | 10x^2-7x+8=0 | | 8am-8bm=(8m) | | 2x=3y-5z | | 9n+5n=42 | | 36/((12-9*7-12) | | 32-3P-V-X=16-0.5P-0.5V-X | | -0.3x=45 | | 36/ | | 2X+2M+V+P=32 | | M=32-3P-V-X | | 12n=89 | | 1.5*2(x/3)-15 | | 128+2.50v=(14.50+4)v | | 3P+M+V+X=32 | | 12=89 |
