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Simplifying 3(k + 7) = 6(k + 1) + -3 Reorder the terms: 3(7 + k) = 6(k + 1) + -3 (7 * 3 + k * 3) = 6(k + 1) + -3 (21 + 3k) = 6(k + 1) + -3 Reorder the terms: 21 + 3k = 6(1 + k) + -3 21 + 3k = (1 * 6 + k * 6) + -3 21 + 3k = (6 + 6k) + -3 Reorder the terms: 21 + 3k = 6 + -3 + 6k Combine like terms: 6 + -3 = 3 21 + 3k = 3 + 6k Solving 21 + 3k = 3 + 6k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-6k' to each side of the equation. 21 + 3k + -6k = 3 + 6k + -6k Combine like terms: 3k + -6k = -3k 21 + -3k = 3 + 6k + -6k Combine like terms: 6k + -6k = 0 21 + -3k = 3 + 0 21 + -3k = 3 Add '-21' to each side of the equation. 21 + -21 + -3k = 3 + -21 Combine like terms: 21 + -21 = 0 0 + -3k = 3 + -21 -3k = 3 + -21 Combine like terms: 3 + -21 = -18 -3k = -18 Divide each side by '-3'. k = 6 Simplifying k = 6
| 2(7x+4)=48 | | 6(5x+6)+6x=-8+8(5x-2) | | 9(w-9)-2=-7w+7(w-8) | | 30000x-2839200=0.2*30000x | | 7x-99=180 | | 6+1n(x-5)=1nx | | 30000x-2839200=0.2*30000 | | 15x^2-2y^2=7xy | | 3(x+2)=4(x-2) | | [3+5x]=[1-8x] | | 2x+6=5-4x | | 12-3x=3x+15 | | 6n^2=5.5 | | 3v/4-1=8 | | 10-y=13 | | 9-y=10 | | 9-a=24 | | (5u+2)(3+u)=0 | | 5-z=10 | | 7a+2=5(a-4) | | x^4+3x=4 | | 2(2x)+4(4m+2)=108 | | 5x^3=30x | | 3x-4=-2+16 | | 1/x-x/5=0 | | -19x-57= | | 2+5x-3x+4= | | 20=2x+16 | | 3/2(2x-4)=x-2 | | -48x+96= | | 8b-25=7(3b-2)-2b | | f(x)=6x^2+5x-6 |