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Simplifying x(9x + -4) = (9x + 7)(x + -2) Reorder the terms: x(-4 + 9x) = (9x + 7)(x + -2) (-4 * x + 9x * x) = (9x + 7)(x + -2) (-4x + 9x2) = (9x + 7)(x + -2) Reorder the terms: -4x + 9x2 = (7 + 9x)(x + -2) Reorder the terms: -4x + 9x2 = (7 + 9x)(-2 + x) Multiply (7 + 9x) * (-2 + x) -4x + 9x2 = (7(-2 + x) + 9x * (-2 + x)) -4x + 9x2 = ((-2 * 7 + x * 7) + 9x * (-2 + x)) -4x + 9x2 = ((-14 + 7x) + 9x * (-2 + x)) -4x + 9x2 = (-14 + 7x + (-2 * 9x + x * 9x)) -4x + 9x2 = (-14 + 7x + (-18x + 9x2)) Combine like terms: 7x + -18x = -11x -4x + 9x2 = (-14 + -11x + 9x2) Add '-9x2' to each side of the equation. -4x + 9x2 + -9x2 = -14 + -11x + 9x2 + -9x2 Combine like terms: 9x2 + -9x2 = 0 -4x + 0 = -14 + -11x + 9x2 + -9x2 -4x = -14 + -11x + 9x2 + -9x2 Combine like terms: 9x2 + -9x2 = 0 -4x = -14 + -11x + 0 -4x = -14 + -11x Solving -4x = -14 + -11x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11x' to each side of the equation. -4x + 11x = -14 + -11x + 11x Combine like terms: -4x + 11x = 7x 7x = -14 + -11x + 11x Combine like terms: -11x + 11x = 0 7x = -14 + 0 7x = -14 Divide each side by '7'. x = -2 Simplifying x = -2
| (-2+4i)(-5+6i)= | | x+[0.5(0.9784x)]+[0.12(x+[0.5(0.9784x)])]=6300 | | x+(-6)=-7 | | .5x+5y=-10 | | 18-2(2w+1)=10-2(10+1) | | 2(y+2)-5(2y-3)=8y+8 | | 4z+3(5-z)=-(z-3)+2 | | 6-5(2x-3)=4x+3 | | f=7/2(n-1) | | 42+3(5-2)=-(2-3)+2 | | 0.9784x+[0.5(0.9784x)]+[0.12(0.9784x+[0.5(0.9784x)])]=6300 | | 3(3a-5b)-(a-7b)= | | 3x-4(x+1)=-(6x+8)+x | | 6x/c-7x/a=b | | M-2=6.7 | | 6(c-2)-(8c+1)= | | 0.9785x+[0.5(0.9785x)]+[0.12(0.9785x+[0.5(0.9785x)])]=6300 | | 3/10,4/15 | | 0.9x+[0.5(0.9x)]+[0.12(0.9x+[0.5(0.9x)])]=6300 | | 26=(5-4w)6 | | 0.09x+0.12(x+9000)=1500 | | -6=2-x-x | | 248/2 | | x[3+3]=12 | | =4n+29 | | =5n+25 | | 5+1n(x-1)=4 | | 7(w-4)=5w-38 | | 6(2x-1)-12=3(x+4) | | -3*4/p=-0.06 | | 5n-3n+12=4 | | H-(-13)=-8 |