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Simplifying -4 + 8(-2 + -1n) = -7(2n + -4) -4 + (-2 * 8 + -1n * 8) = -7(2n + -4) -4 + (-16 + -8n) = -7(2n + -4) Combine like terms: -4 + -16 = -20 -20 + -8n = -7(2n + -4) Reorder the terms: -20 + -8n = -7(-4 + 2n) -20 + -8n = (-4 * -7 + 2n * -7) -20 + -8n = (28 + -14n) Solving -20 + -8n = 28 + -14n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '14n' to each side of the equation. -20 + -8n + 14n = 28 + -14n + 14n Combine like terms: -8n + 14n = 6n -20 + 6n = 28 + -14n + 14n Combine like terms: -14n + 14n = 0 -20 + 6n = 28 + 0 -20 + 6n = 28 Add '20' to each side of the equation. -20 + 20 + 6n = 28 + 20 Combine like terms: -20 + 20 = 0 0 + 6n = 28 + 20 6n = 28 + 20 Combine like terms: 28 + 20 = 48 6n = 48 Divide each side by '6'. n = 8 Simplifying n = 8
| 5x-8=2x+25 | | -4x+15=11x+10 | | 5y-(3y+2)=1 | | 2x+22=136 | | 3a+8a+a= | | 5x-7/5=9x-5/10 | | 3(2x+7)-5=112 | | 7+3y-5=7y+8-3y | | 9x+4x+2+5=8x+3+4x | | -16(2y+15)=-1.2(2y-10) | | 5xy^2=0 | | 2(3b-8)=2(205+2b) | | 55x^2-60x=0 | | C+9.9=2.7 | | 5x-11=13-3x | | 16-3x=7x | | 2/x=17 | | 2x-(5x+10)=6x-(x+2)+(2x-5) | | 3x-2=97-76x | | 2x-3-4x=7 | | 7-8x-2=-38+3x-12 | | 17-2x=-6x+17 | | 5(1+7r)=6(6r+4)-5 | | 6y+9=34 | | 3*(2+4)= | | 10/7=x | | 4(-8)=-(p+3)+6 | | 3*(6+4)= | | 20/x=14 | | 12x-2=19x-4 | | 4(-8)=-(p+3) | | 12(x-2)=8x-8 |