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Simplifying (3x + -1)(x + 2) = x(3x) Reorder the terms: (-1 + 3x)(x + 2) = x(3x) Reorder the terms: (-1 + 3x)(2 + x) = x(3x) Multiply (-1 + 3x) * (2 + x) (-1(2 + x) + 3x * (2 + x)) = x(3x) ((2 * -1 + x * -1) + 3x * (2 + x)) = x(3x) ((-2 + -1x) + 3x * (2 + x)) = x(3x) (-2 + -1x + (2 * 3x + x * 3x)) = x(3x) (-2 + -1x + (6x + 3x2)) = x(3x) Combine like terms: -1x + 6x = 5x (-2 + 5x + 3x2) = x(3x) Remove parenthesis around (3x) -2 + 5x + 3x2 = x * 3x Reorder the terms for easier multiplication: -2 + 5x + 3x2 = 3x * x Multiply x * x -2 + 5x + 3x2 = 3x2 Add '-3x2' to each side of the equation. -2 + 5x + 3x2 + -3x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -2 + 5x + 0 = 3x2 + -3x2 -2 + 5x = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -2 + 5x = 0 Solving -2 + 5x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 5x = 0 + 2 5x = 0 + 2 Combine like terms: 0 + 2 = 2 5x = 2 Divide each side by '5'. x = 0.4 Simplifying x = 0.4
| 155-9x=10+16 | | 1/3x^2-1/2x=1/6 | | 4(x+5)-x=4(x-1) | | 6y=-3-5x | | 5x=6y-3 | | (4b+2)(3b-9a)= | | 3(x+2)-4=11-(x-7) | | 17b+3a*3a-5b+9a*9a= | | 2s^2-18=0 | | (3z-2)(2z-3)=2(z-3)(3z+5)+1 | | 3a(7b-4)= | | 4g-2-3g=100g-4-100g | | 4p+3q=30 | | 5+2(3-x)=4+2(x-2)+5x | | 5+2(3-x)=4+2(x-2)+5 | | -2x^2-xy+5y=0 | | 3A-5+A=3a+20-2a | | 2(x-7)+5(3+2x)+6=0 | | 2x^2+xy-5y=0 | | 9/16=(80/8)-(3/8) | | 16x-4=7x+12 | | 9x/16=(80/8)-(3/8) | | t+4-3f=7-f | | x^2+10x=4x-2 | | -0.01x^2-0.2x+1=0 | | -0.01x^2-0.2x+3=0 | | 8x+5y=13 | | 10-3k=3k+42 | | -50-6=x | | -50/6=x | | -2t-3=-4t | | 0.42=0.17+5k |