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Simplifying 2[k + -1(4k + 8) + 4] = 2(k + 4) Reorder the terms: 2[k + -1(8 + 4k) + 4] = 2(k + 4) 2[k + (8 * -1 + 4k * -1) + 4] = 2(k + 4) 2[k + (-8 + -4k) + 4] = 2(k + 4) Reorder the terms: 2[-8 + 4 + k + -4k] = 2(k + 4) Combine like terms: -8 + 4 = -4 2[-4 + k + -4k] = 2(k + 4) Combine like terms: k + -4k = -3k 2[-4 + -3k] = 2(k + 4) [-4 * 2 + -3k * 2] = 2(k + 4) [-8 + -6k] = 2(k + 4) Reorder the terms: -8 + -6k = 2(4 + k) -8 + -6k = (4 * 2 + k * 2) -8 + -6k = (8 + 2k) Solving -8 + -6k = 8 + 2k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-2k' to each side of the equation. -8 + -6k + -2k = 8 + 2k + -2k Combine like terms: -6k + -2k = -8k -8 + -8k = 8 + 2k + -2k Combine like terms: 2k + -2k = 0 -8 + -8k = 8 + 0 -8 + -8k = 8 Add '8' to each side of the equation. -8 + 8 + -8k = 8 + 8 Combine like terms: -8 + 8 = 0 0 + -8k = 8 + 8 -8k = 8 + 8 Combine like terms: 8 + 8 = 16 -8k = 16 Divide each side by '-8'. k = -2 Simplifying k = -2
| 5t-3=12-t | | 7(5x-10)=-105 | | N^2+19n+420=0 | | x^2+8x+38=-6x+5 | | 4r+7=8r+7 | | 7+28m=35+21m | | (0.015)*X=21280 | | 7-5p=4p-1 | | x-5+x+7= | | 46=2(L)+8 | | ydx+(1-y)xdy=0 | | (0.02)*X=21000 | | -.7=3.5g | | 5x^2+y^2=45 | | 25x=200*200 | | -x-11=-3x-21x | | (0.015)*X=21000 | | -3.1=4.75-x | | .20(y-6)+.10y=.14y-1.4 | | 5.77=x+9 | | 2.8-4.7= | | .20(y-6)+10y=.14y-1.4 | | (2x-3)(6+5x)=0 | | -3x+(-5x)= | | 7+27m=28+20m | | .04(y-1)+.08y=.02y-.2 | | -2(-6-3x)=-48 | | Log^25x=1.5 | | 5y+y=5y+6 | | e^6x+5e^3x=24 | | 21+25m=35+18m | | (.015)*X=1765 |