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Simplifying 2[7 + -7(1 + -1n)] + 4 = -16 + 3[6(n + 1) + -3n] 2[7 + (1 * -7 + -1n * -7)] + 4 = -16 + 3[6(n + 1) + -3n] 2[7 + (-7 + 7n)] + 4 = -16 + 3[6(n + 1) + -3n] Combine like terms: 7 + -7 = 0 2[0 + 7n] + 4 = -16 + 3[6(n + 1) + -3n] 2[7n] + 4 = -16 + 3[6(n + 1) + -3n] Remove brackets around [7n] 2 * 7n + 4 = -16 + 3[6(n + 1) + -3n] Multiply 2 * 7 14n + 4 = -16 + 3[6(n + 1) + -3n] Reorder the terms: 4 + 14n = -16 + 3[6(n + 1) + -3n] Reorder the terms: 4 + 14n = -16 + 3[6(1 + n) + -3n] 4 + 14n = -16 + 3[(1 * 6 + n * 6) + -3n] 4 + 14n = -16 + 3[(6 + 6n) + -3n] Combine like terms: 6n + -3n = 3n 4 + 14n = -16 + 3[6 + 3n] 4 + 14n = -16 + [6 * 3 + 3n * 3] 4 + 14n = -16 + [18 + 9n] Combine like terms: -16 + 18 = 2 4 + 14n = 2 + 9n Solving 4 + 14n = 2 + 9n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-9n' to each side of the equation. 4 + 14n + -9n = 2 + 9n + -9n Combine like terms: 14n + -9n = 5n 4 + 5n = 2 + 9n + -9n Combine like terms: 9n + -9n = 0 4 + 5n = 2 + 0 4 + 5n = 2 Add '-4' to each side of the equation. 4 + -4 + 5n = 2 + -4 Combine like terms: 4 + -4 = 0 0 + 5n = 2 + -4 5n = 2 + -4 Combine like terms: 2 + -4 = -2 5n = -2 Divide each side by '5'. n = -0.4 Simplifying n = -0.4
| 2+(x+3)=b | | -(7y+1)-(-6y-5)=-1 | | 3v-9=3z-7+5z | | 2x-1y=23 | | 7y+4-2y+8=b | | -4x-2-x=53 | | -4=8(x-3)-3x | | -5x-30=-10 | | a/-5=-11.3 | | (-3n+7n)-(4n^3-4n^2+12)=0 | | 0.3x-2.5=3.4x+1.5 | | y=mx+kx | | 34x^2+19=15 | | y=500+7x | | 7x+4-2y+8=b | | 0.50x+0.35(70)=33.5 | | 2n^3+25n=0 | | 13x-21=-3x+7 | | 13x-21=-3x+2 | | 3x+8+5x=-6 | | k-20+5k=2k+4 | | X-1.5=22.5 | | 3x+3x=5x-7 | | 13x-21=-3x+10 | | 0.1x=0.2(x+3) | | 1x+300-(5x)=30 | | 6r-2r=-5 | | 11-7=f | | 0.6x+4.2=2.1 | | 4x+15x-39=18 | | 2+3x+5x=180 | | 1x+300-5x=30 |