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Simplifying 2[7 + -6(1 + -1n)] + 3n = -8 + 2[6(n + 1) + -3n] 2[7 + (1 * -6 + -1n * -6)] + 3n = -8 + 2[6(n + 1) + -3n] 2[7 + (-6 + 6n)] + 3n = -8 + 2[6(n + 1) + -3n] Combine like terms: 7 + -6 = 1 2[1 + 6n] + 3n = -8 + 2[6(n + 1) + -3n] [1 * 2 + 6n * 2] + 3n = -8 + 2[6(n + 1) + -3n] [2 + 12n] + 3n = -8 + 2[6(n + 1) + -3n] Combine like terms: 12n + 3n = 15n 2 + 15n = -8 + 2[6(n + 1) + -3n] Reorder the terms: 2 + 15n = -8 + 2[6(1 + n) + -3n] 2 + 15n = -8 + 2[(1 * 6 + n * 6) + -3n] 2 + 15n = -8 + 2[(6 + 6n) + -3n] Combine like terms: 6n + -3n = 3n 2 + 15n = -8 + 2[6 + 3n] 2 + 15n = -8 + [6 * 2 + 3n * 2] 2 + 15n = -8 + [12 + 6n] Combine like terms: -8 + 12 = 4 2 + 15n = 4 + 6n Solving 2 + 15n = 4 + 6n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-6n' to each side of the equation. 2 + 15n + -6n = 4 + 6n + -6n Combine like terms: 15n + -6n = 9n 2 + 9n = 4 + 6n + -6n Combine like terms: 6n + -6n = 0 2 + 9n = 4 + 0 2 + 9n = 4 Add '-2' to each side of the equation. 2 + -2 + 9n = 4 + -2 Combine like terms: 2 + -2 = 0 0 + 9n = 4 + -2 9n = 4 + -2 Combine like terms: 4 + -2 = 2 9n = 2 Divide each side by '9'. n = 0.2222222222 Simplifying n = 0.2222222222
| -5(2+4x)=3-7x | | .2(4x-8)+.2(x-4)=-.8x | | 3/4(8x-12)=7 | | 2=-1+3 | | 2[d-(2d+13)+12]=2(d+1) | | .5x+.2=.12 | | N=-3t^2+6t+220 | | 1/3(6x-9)=-5 | | 4y-xy=12 | | 3(y-5)=32 | | 61=25 | | 3x+4(x-10)=21 | | -12=4x-3(2+x) | | 17=r+n | | x^2+9*x+5=0 | | 6.32p-7=38+4.32p | | F=1/2gr | | 5(3x+13)=20 | | 12n=5n+28 | | -9=t^7 | | 2(n+7)=5n+7 | | 5(3x+13)=25 | | 14-3x+5x-2=6-x-34 | | 12n=5n+9 | | http://media.apexlearning.com/Images/200805/23/eaf4e5a8-4fb1-4fdf-84c2-549ac9db94fa.gif | | (40+2x)(30+2x)=1800 | | -3x^2-24*x+11= | | u^7=3 | | -2(c-3)=24 | | 10+5(x+13)=25 | | (5x+7)+(3x+11)=90 | | 6.32p-17=38+4.32p |
