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Simplifying 9(9n + 9) = 3(27n + 3n) Reorder the terms: 9(9 + 9n) = 3(27n + 3n) (9 * 9 + 9n * 9) = 3(27n + 3n) (81 + 81n) = 3(27n + 3n) Combine like terms: 27n + 3n = 30n 81 + 81n = 3(30n) Remove parenthesis around (30n) 81 + 81n = 3 * 30n Multiply 3 * 30 81 + 81n = 90n Solving 81 + 81n = 90n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-90n' to each side of the equation. 81 + 81n + -90n = 90n + -90n Combine like terms: 81n + -90n = -9n 81 + -9n = 90n + -90n Combine like terms: 90n + -90n = 0 81 + -9n = 0 Add '-81' to each side of the equation. 81 + -81 + -9n = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -9n = 0 + -81 -9n = 0 + -81 Combine like terms: 0 + -81 = -81 -9n = -81 Divide each side by '-9'. n = 9 Simplifying n = 9
| 4.357x+156.143= | | a^2b+7ab^2= | | -10(1-8n)= | | -5=1-(a*b*c) | | 7k-14=42-5k | | 4(5n-10)= | | -5=1-(x*x*x) | | 5.2=-8+x | | -6(8m+5)= | | 10x+22x= | | -3(k-6)= | | -(1/2)x-(-3)=8 | | 6(n-1)=2(n+4) | | 2(-8+7x)= | | 3(1-t)+5=3(1+t) | | 1/2*(1-2x)=3-x | | 3.75h+4=8.75h | | (72+2)/p=0 | | -6n-2+2= | | -5=1-(1*2*x) | | 7xy+x= | | (1/4X-4/3)-(3/4x+2/3) | | -x+10+7+6x= | | -7(7x-1)=497 | | 2n=1/16 | | 2xy+3=0 | | -8x-20=-7x-41 | | 13.2/6=m/24 | | 5(p+3)9=3(p-2)+6 | | x-2/5+x+8/2=7/5 | | 7-7n+5n= | | -1+3x=x+9 |