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Simplifying -1(7n + -2) + 2(n + 5) = -1n + -2n Reorder the terms: -1(-2 + 7n) + 2(n + 5) = -1n + -2n (-2 * -1 + 7n * -1) + 2(n + 5) = -1n + -2n (2 + -7n) + 2(n + 5) = -1n + -2n Reorder the terms: 2 + -7n + 2(5 + n) = -1n + -2n 2 + -7n + (5 * 2 + n * 2) = -1n + -2n 2 + -7n + (10 + 2n) = -1n + -2n Reorder the terms: 2 + 10 + -7n + 2n = -1n + -2n Combine like terms: 2 + 10 = 12 12 + -7n + 2n = -1n + -2n Combine like terms: -7n + 2n = -5n 12 + -5n = -1n + -2n Combine like terms: -1n + -2n = -3n 12 + -5n = -3n Solving 12 + -5n = -3n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3n' to each side of the equation. 12 + -5n + 3n = -3n + 3n Combine like terms: -5n + 3n = -2n 12 + -2n = -3n + 3n Combine like terms: -3n + 3n = 0 12 + -2n = 0 Add '-12' to each side of the equation. 12 + -12 + -2n = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -2n = 0 + -12 -2n = 0 + -12 Combine like terms: 0 + -12 = -12 -2n = -12 Divide each side by '-2'. n = 6 Simplifying n = 6
| 5+3x=3x+1 | | x/60=5/13 | | 150/15=120 | | 7.2m=11.8+9.2m | | 30mn-3= | | 7-3x=c-4(2+x) | | -55/5 | | 6.4z-2.39=16.69-9.5z | | 4(3x-5)=92 | | 2.5-p=1.75 | | Y=3X^5+9X+2 | | -21a^8b/7ab^5 | | 9c-17-20=12c+20 | | 3X^5+9X+2=0 | | -2xy-5=-9 | | 8z-3=45 | | 14-15f=-13f | | 5-3x=100-8x | | x-3x=50 | | -1x+55=155 | | 56x^3y^2/70xy | | 5s/3=150 | | x/60=7/13 | | -12+q=3q+20 | | 7x+(-5)=11 | | 28+53x+17=180 | | 6-5t=-6t | | .7x=50 | | 4(d+3)+7=4 | | 5(3D-12)=15 | | 16.5+2+16.5+5=40 | | x^2-3x+150=0 |