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Simplifying -12(d + -7) + 3(4d + 4) = -1d + -1(6d + 30) Reorder the terms: -12(-7 + d) + 3(4d + 4) = -1d + -1(6d + 30) (-7 * -12 + d * -12) + 3(4d + 4) = -1d + -1(6d + 30) (84 + -12d) + 3(4d + 4) = -1d + -1(6d + 30) Reorder the terms: 84 + -12d + 3(4 + 4d) = -1d + -1(6d + 30) 84 + -12d + (4 * 3 + 4d * 3) = -1d + -1(6d + 30) 84 + -12d + (12 + 12d) = -1d + -1(6d + 30) Reorder the terms: 84 + 12 + -12d + 12d = -1d + -1(6d + 30) Combine like terms: 84 + 12 = 96 96 + -12d + 12d = -1d + -1(6d + 30) Combine like terms: -12d + 12d = 0 96 + 0 = -1d + -1(6d + 30) 96 = -1d + -1(6d + 30) Reorder the terms: 96 = -1d + -1(30 + 6d) 96 = -1d + (30 * -1 + 6d * -1) 96 = -1d + (-30 + -6d) Reorder the terms: 96 = -30 + -1d + -6d Combine like terms: -1d + -6d = -7d 96 = -30 + -7d Solving 96 = -30 + -7d Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Add '7d' to each side of the equation. 96 + 7d = -30 + -7d + 7d Combine like terms: -7d + 7d = 0 96 + 7d = -30 + 0 96 + 7d = -30 Add '-96' to each side of the equation. 96 + -96 + 7d = -30 + -96 Combine like terms: 96 + -96 = 0 0 + 7d = -30 + -96 7d = -30 + -96 Combine like terms: -30 + -96 = -126 7d = -126 Divide each side by '7'. d = -18 Simplifying d = -18
| 16-2x=-16+4 | | 60.77(2x-38.79)=10.99 | | -12-2x=-2(x+6) | | -5x(2x^2-3x-1)=0 | | 38.89(.5x+10.99)=60.77 | | 30=v(v-7) | | 2x+4.8=9.8 | | 5x+15=6x-4 | | 38.89(.5x-10.99)=60.77 | | logx=9.86 | | 3+5m=-8-2m | | -6(x+2)=-4(x-7) | | 4(19)+11=180 | | -9u+42=3(u+6) | | 0.8+0.4+0.1x-0.7-0.4x= | | 6(19)-21=180 | | -(x-7)=18 | | 16=2v-10 | | 500+35d=55d | | 6x-21=180 | | -8(3x-2)=-6x | | -9n=-30 | | 6x-21+4x+11=180 | | 365=t-237 | | 20-2c+4=2c+6+c | | -4(4y+4)-9=-8(y+5)+4y | | 9x-6x+174=9x+90 | | 11x+3+4x-3=6x-40+13 | | -4(x+5)=-8(x+4) | | 237=35x+4.50x | | 38.79(10.99+2x)=60.77 | | 6-x^2=4x |