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Simplifying 8x + -1(6x + 3) = 4x + -21 Reorder the terms: 8x + -1(3 + 6x) = 4x + -21 8x + (3 * -1 + 6x * -1) = 4x + -21 8x + (-3 + -6x) = 4x + -21 Reorder the terms: -3 + 8x + -6x = 4x + -21 Combine like terms: 8x + -6x = 2x -3 + 2x = 4x + -21 Reorder the terms: -3 + 2x = -21 + 4x Solving -3 + 2x = -21 + 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. -3 + 2x + -4x = -21 + 4x + -4x Combine like terms: 2x + -4x = -2x -3 + -2x = -21 + 4x + -4x Combine like terms: 4x + -4x = 0 -3 + -2x = -21 + 0 -3 + -2x = -21 Add '3' to each side of the equation. -3 + 3 + -2x = -21 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = -21 + 3 -2x = -21 + 3 Combine like terms: -21 + 3 = -18 -2x = -18 Divide each side by '-2'. x = 9 Simplifying x = 9
| (3w+7)(1-w)=0 | | 5=x+25 | | (3w+7)(1+w)=0 | | 4x-5=28-2x | | 1.6y+y=5421 | | f(x)=9x+9x^2 | | 12-2x=2x | | 5n-15=2n+12 | | 4x-5=29-2x | | (-6)x+1=216 | | (.6)x+1=216 | | (4y-5)(3-y)=0 | | (4w-9)(7-w)=0 | | Lny=2 | | Gf(x)=log(4x-1) | | Lgy=2.075 | | ln(19)=ln(2)+ln(x+6) | | 2x^2+y^2=9 | | 4x^2-16x-6=0 | | w^2=8w-12 | | 6r^2-10=r | | 0.7(x+7)+1.7(x-6)= | | -4x^3+2x-6=0 | | 27+-6=3 | | 4y+6w=2 | | 5(x-4)=3(x+1.5) | | 3x-4y+7a= | | 5.0m+6.25+3.1m= | | (-2x)(-3y)(-z)= | | m=2,(-2,-3) | | -1.6(x-3.7)=1.375 | | 0=160t-1000 |