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Simplifying 5(3n + 4) = 7(5n + 9) + 7 Reorder the terms: 5(4 + 3n) = 7(5n + 9) + 7 (4 * 5 + 3n * 5) = 7(5n + 9) + 7 (20 + 15n) = 7(5n + 9) + 7 Reorder the terms: 20 + 15n = 7(9 + 5n) + 7 20 + 15n = (9 * 7 + 5n * 7) + 7 20 + 15n = (63 + 35n) + 7 Reorder the terms: 20 + 15n = 63 + 7 + 35n Combine like terms: 63 + 7 = 70 20 + 15n = 70 + 35n Solving 20 + 15n = 70 + 35n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-35n' to each side of the equation. 20 + 15n + -35n = 70 + 35n + -35n Combine like terms: 15n + -35n = -20n 20 + -20n = 70 + 35n + -35n Combine like terms: 35n + -35n = 0 20 + -20n = 70 + 0 20 + -20n = 70 Add '-20' to each side of the equation. 20 + -20 + -20n = 70 + -20 Combine like terms: 20 + -20 = 0 0 + -20n = 70 + -20 -20n = 70 + -20 Combine like terms: 70 + -20 = 50 -20n = 50 Divide each side by '-20'. n = -2.5 Simplifying n = -2.5
| 6x-(3x+4)=2x+-3x-2 | | 7/5-x=0 | | 0.3x+4.8=0.2x+1.9 | | 2x*6=11x-8/3 | | -4(x+4)=(x+1) | | 0.12x+0.04(3000-x)=280 | | 78x^2+5x-58=0 | | -8x+-4+6x=5x+11+-4x | | 3a-15=4a+5 | | -8-4+6x=5x+11-4x | | 7b-43+27=25 | | 8r-11-18q+5p+7q= | | X+183=180 | | 3/4k-2=k | | 1.3+0.1x=0.6x-10.2 | | 6x^2+9y^2-24x-54y+105=0 | | -7t+2+8r+9r-8t= | | -2-5n=48 | | f(3x+2)=5x-6 | | 1/15x-1/2=1/5x-3/10 | | 0.15p-1.5=4.5 | | 10w+19+3x=6(9+w)-14 | | 3.50*x+812= | | 11x+-5=27 | | 4x-6(5x+1)+8(x-3)=14-10(x+2) | | z=15x+18y | | -(3x-4)=x+16 | | 4x+1=8x-1 | | (3x-4)=x+16 | | -2x+7=4x-3(2x+7) | | y=16t^2+63t+5 | | v+(-8)=12 |