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Simplifying 9(2n + 2) = 7(7n + 9) * 2 Reorder the terms: 9(2 + 2n) = 7(7n + 9) * 2 (2 * 9 + 2n * 9) = 7(7n + 9) * 2 (18 + 18n) = 7(7n + 9) * 2 Reorder the terms: 18 + 18n = 7(9 + 7n) * 2 Reorder the terms for easier multiplication: 18 + 18n = 7 * 2(9 + 7n) Multiply 7 * 2 18 + 18n = 14(9 + 7n) 18 + 18n = (9 * 14 + 7n * 14) 18 + 18n = (126 + 98n) Solving 18 + 18n = 126 + 98n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-98n' to each side of the equation. 18 + 18n + -98n = 126 + 98n + -98n Combine like terms: 18n + -98n = -80n 18 + -80n = 126 + 98n + -98n Combine like terms: 98n + -98n = 0 18 + -80n = 126 + 0 18 + -80n = 126 Add '-18' to each side of the equation. 18 + -18 + -80n = 126 + -18 Combine like terms: 18 + -18 = 0 0 + -80n = 126 + -18 -80n = 126 + -18 Combine like terms: 126 + -18 = 108 -80n = 108 Divide each side by '-80'. n = -1.35 Simplifying n = -1.35
| 3(x+5)+7x=10x-15 | | x^2-10x-37=-6x-5 | | 5=8x-1 | | a=.5(7.5+5.7)2.5 | | 3x+8+5x=-35 | | a=.5(8.6+7.5)2.5 | | 1+7+x=25 | | a=.5(8.5+8.6)2.5 | | 18(u+886)=-234 | | n/12=28 | | a=.5(7.7+8.5)2.5 | | 200=-16t^2+200t | | -41=8-2(5x+2) | | P=36*.004*.5 | | a=.5(7+7.7)2.5 | | f=2(w+1.25w)+0.875 | | x+(x-38)=138 | | -x^2+1=x | | 2t-3t+8=3r-8 | | 52-(-22)= | | 2m-20=4m+50 | | 4(a-2)+2a=-a+3-6 | | f/3=3.6 | | 2x+3=1g | | x*x*x*x-3x*x*x-4x*x=0 | | -f=2.64 | | 8.5=r+-3.5 | | 2(3x-1)+4=26 | | 2(x-8)+7x+3=3x+5 | | 75/240 | | 3x+13x=144 | | 6=12-3t |