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Simplifying 20 + -12n + 20 = -20 + -2n Reorder the terms: 20 + 20 + -12n = -20 + -2n Combine like terms: 20 + 20 = 40 40 + -12n = -20 + -2n Solving 40 + -12n = -20 + -2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2n' to each side of the equation. 40 + -12n + 2n = -20 + -2n + 2n Combine like terms: -12n + 2n = -10n 40 + -10n = -20 + -2n + 2n Combine like terms: -2n + 2n = 0 40 + -10n = -20 + 0 40 + -10n = -20 Add '-40' to each side of the equation. 40 + -40 + -10n = -20 + -40 Combine like terms: 40 + -40 = 0 0 + -10n = -20 + -40 -10n = -20 + -40 Combine like terms: -20 + -40 = -60 -10n = -60 Divide each side by '-10'. n = 6 Simplifying n = 6
| -x^2+15x-56=0 | | 3b+2a=22 | | 5Y-65Y=200 | | 20b+16= | | -9b+16=-11b | | 5y^3(5y^2-7y+9)= | | 4+.20P=5+30P | | YZ=0 | | .66+.75x=.83 | | 3y-x-3=0 | | y=4x^2+32x+61 | | -4r+2=-5r+10 | | 2(y-3)=2y-9+y | | -7a-3=9+6a | | 0.4x+9.6=7.8 | | -9p+2=-7p-5-3p | | 7+2(5k+4)=-21-2k | | 5n+2=-14-n | | 18x^3=21x^2+72x | | 32m=64 | | 0.6x-1.5=8.1 | | -2m=9-5m | | 2x^4-12x^3+4x^2-38x+84=0 | | -3m=9-5m | | 42x^2-12x= | | a=b-1x-2+cx-1 | | .20(12+x)=.6+.35x | | 8x+5+3x+9+4x+4=180 | | 5z-10z=7z | | .3(12+x)=.6+.35x | | 6+p+7p=3p+6+5p | | s+2+2s-10=180 |