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Simplifying (4n + 20) + (2n + 34) = 180 Reorder the terms: (20 + 4n) + (2n + 34) = 180 Remove parenthesis around (20 + 4n) 20 + 4n + (2n + 34) = 180 Reorder the terms: 20 + 4n + (34 + 2n) = 180 Remove parenthesis around (34 + 2n) 20 + 4n + 34 + 2n = 180 Reorder the terms: 20 + 34 + 4n + 2n = 180 Combine like terms: 20 + 34 = 54 54 + 4n + 2n = 180 Combine like terms: 4n + 2n = 6n 54 + 6n = 180 Solving 54 + 6n = 180 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-54' to each side of the equation. 54 + -54 + 6n = 180 + -54 Combine like terms: 54 + -54 = 0 0 + 6n = 180 + -54 6n = 180 + -54 Combine like terms: 180 + -54 = 126 6n = 126 Divide each side by '6'. n = 21 Simplifying n = 21
| 2/3×21 | | 11x-3-4x=7+3x+2 | | 2(3+5x)+2(5x+3)=-92 | | 5.71=-log(x) | | 2ln(4x)+5ln(7x)=6 | | (d+2)=6 | | B=1-18/4 | | X^2+10x-8=10 | | 3x-3x=3-1 | | -4x-5y=10 | | 2.3=[(0.785)(x2)(14)(7.48)]/[(0.785)(60)(60) | | 4+5lnx=2 | | 9z-z=-1+4z-3-4 | | 5XZ=30 | | 5f/5=35/5 | | 2x-4=87-11x | | 7y=-7*7-35 | | 3b^2-b-14=0 | | 20x+10=60 | | 2x+3.4=2x+3.4 | | 3(2x-4)-4x=16 | | 2(0)+(y)-6(0)=30 | | -2x+7=12x-6 | | -11+x=7x+5 | | 0=a^2+14a+36 | | 2y^2+7=5 | | 3=3x-6x^2 | | 17-(4-6z)+4=21 | | 2x^2+10-6=0 | | 3a=15+3 | | x/136=1.5 | | 7x-15=36 |