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Simplifying 12 + (k + 3) = 3k + -6 Reorder the terms: 12 + (3 + k) = 3k + -6 Remove parenthesis around (3 + k) 12 + 3 + k = 3k + -6 Combine like terms: 12 + 3 = 15 15 + k = 3k + -6 Reorder the terms: 15 + k = -6 + 3k Solving 15 + k = -6 + 3k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-3k' to each side of the equation. 15 + k + -3k = -6 + 3k + -3k Combine like terms: k + -3k = -2k 15 + -2k = -6 + 3k + -3k Combine like terms: 3k + -3k = 0 15 + -2k = -6 + 0 15 + -2k = -6 Add '-15' to each side of the equation. 15 + -15 + -2k = -6 + -15 Combine like terms: 15 + -15 = 0 0 + -2k = -6 + -15 -2k = -6 + -15 Combine like terms: -6 + -15 = -21 -2k = -21 Divide each side by '-2'. k = 10.5 Simplifying k = 10.5
| 2x+6-12+4=16 | | 3x-12+x-(3-x)=2*15*12 | | X^2+3X+14=0 | | 3x-12+x-(3x)=2*15*12 | | 1.2+1.4y=1.5y+0.63 | | 1.2+1.4=1.5y+0.63 | | 9+5x=-46 | | 0.5a-1=2+0.6a | | 0.6x=1.92 | | -4x+7=8x+15 | | -1.6=2-0.4y | | 7.9x-3.07-2x=4.01 | | 5x+0.8=1.2 | | 1.6y=-6.4 | | 6y=-6.4 | | 4x-5=75 | | 7p-15=4p-5+p | | 5=3y-28 | | 5x+3=3(2x+3) | | 2y-6=22 | | f(-7)=4x^2+2x+3 | | 2x-8=32 | | 3m+7=2m+9 | | X-14=25 | | 1.2x+4.3=2.1-1x | | 3t+8t^3=0 | | 5x+3(0)=15 | | 5(0)+3y=15 | | 5y-4=16 | | 2x-5(0)=10 | | 2(0)-5y=10 | | -9x=177 |