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Simplifying (n + -7) * 3 = 21 Reorder the terms: (-7 + n) * 3 = 21 Reorder the terms for easier multiplication: 3(-7 + n) = 21 (-7 * 3 + n * 3) = 21 (-21 + 3n) = 21 Solving -21 + 3n = 21 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 3n = 21 + 21 Combine like terms: -21 + 21 = 0 0 + 3n = 21 + 21 3n = 21 + 21 Combine like terms: 21 + 21 = 42 3n = 42 Divide each side by '3'. n = 14 Simplifying n = 14
| (n+1)*8=32 | | 4x+74=9x+14 | | 5x+5=2x-10 | | 4x+33=6x+11 | | 9-8x=26-15x | | 6x-4=16x-74 | | 4x+30=14x-50 | | 10x+7=6x+35 | | 6x+9-4x=-3 | | 3x-3+2x=-18 | | 5x^2-8x+4=0 | | 3x+39=11x-49 | | 4x+6-2x=14 | | 8x=-10x+36 | | p(-3)=4x^4+10x^3+19+5 | | p(x)=4x^4+10x^3+19+5 | | 16=4x+2x-2 | | 4x-7x=-21 | | -6-2x=10 | | -10=-10+7x | | 18x-21-15x=3 | | 18x-21-15x=e | | -3x+9=21 | | 4(a-2)=3a+12 | | 2(x-2)+3=2x-7 | | -7-3(-2)=-1 | | 2d+4=5d | | 5+1X=13 | | 2m=4m+15 | | 5m=7m+15 | | (24n)+.12n+1194=1200 | | (24n)+.12n+1196=1200 |