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Simplifying 2[7 + -7(1 + -1n)] + 9n = -14 + 4[6(n + 1) + -3n] 2[7 + (1 * -7 + -1n * -7)] + 9n = -14 + 4[6(n + 1) + -3n] 2[7 + (-7 + 7n)] + 9n = -14 + 4[6(n + 1) + -3n] Combine like terms: 7 + -7 = 0 2[0 + 7n] + 9n = -14 + 4[6(n + 1) + -3n] 2[7n] + 9n = -14 + 4[6(n + 1) + -3n] Remove brackets around [7n] 2 * 7n + 9n = -14 + 4[6(n + 1) + -3n] Multiply 2 * 7 14n + 9n = -14 + 4[6(n + 1) + -3n] Combine like terms: 14n + 9n = 23n 23n = -14 + 4[6(n + 1) + -3n] Reorder the terms: 23n = -14 + 4[6(1 + n) + -3n] 23n = -14 + 4[(1 * 6 + n * 6) + -3n] 23n = -14 + 4[(6 + 6n) + -3n] Combine like terms: 6n + -3n = 3n 23n = -14 + 4[6 + 3n] 23n = -14 + [6 * 4 + 3n * 4] 23n = -14 + [24 + 12n] Combine like terms: -14 + 24 = 10 23n = 10 + 12n Solving 23n = 10 + 12n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-12n' to each side of the equation. 23n + -12n = 10 + 12n + -12n Combine like terms: 23n + -12n = 11n 11n = 10 + 12n + -12n Combine like terms: 12n + -12n = 0 11n = 10 + 0 11n = 10 Divide each side by '11'. n = 0.9090909091 Simplifying n = 0.9090909091
| 64x+20=-26 | | X+10y=8 | | 45+n=97 | | 6x-72=-18 | | Y^2+16y-2y= | | 6x-11x-10=0 | | 12x^2+22x-20= | | n-18=100 | | 4=5+c | | -(4x-3)-(3x-6)+4=-3(x-1)-(8x+1)+3 | | 3-2t=7t-6 | | 10x-4=45x-10 | | 7v=-225 | | 12x^2+22z-20= | | 4/15=32/p | | 3(-8a-9)-3=-3 | | 20=-6x+4(x+3) | | 5x+5+5x-4=71 | | 131=2x^2-6x | | -(x+2)=2x+3 | | 12x-8=7x+30 | | 3(x+16)=40 | | (7+g)+8= | | 9/r=27/30 | | 35=4u+3(u-7) | | .006(x+3)=.007x+.013 | | 9-3(x-12)=x+1 | | 3c+6c-8c= | | 3(8y)+3+4(6y)+6= | | -0.10(9)+0.20x=0.05(x-6) | | 6-g=17 | | 16x^2-160x+100=0 |