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Simplifying k + -1 + 7k = 5(k + 1) Reorder the terms: -1 + k + 7k = 5(k + 1) Combine like terms: k + 7k = 8k -1 + 8k = 5(k + 1) Reorder the terms: -1 + 8k = 5(1 + k) -1 + 8k = (1 * 5 + k * 5) -1 + 8k = (5 + 5k) Solving -1 + 8k = 5 + 5k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-5k' to each side of the equation. -1 + 8k + -5k = 5 + 5k + -5k Combine like terms: 8k + -5k = 3k -1 + 3k = 5 + 5k + -5k Combine like terms: 5k + -5k = 0 -1 + 3k = 5 + 0 -1 + 3k = 5 Add '1' to each side of the equation. -1 + 1 + 3k = 5 + 1 Combine like terms: -1 + 1 = 0 0 + 3k = 5 + 1 3k = 5 + 1 Combine like terms: 5 + 1 = 6 3k = 6 Divide each side by '3'. k = 2 Simplifying k = 2
| 100=20m | | 5(2x+-1)=-4(x+3) | | 5y^2+8y=-3 | | 300=20m | | 10-(5x-4)= | | 109-2X=5X | | 17gm=ml | | -17-3=13-9X | | 3(-13/9)+4y=4 | | 7.94x+15.88=31.76 | | R(x)=-0.05x^2+450x | | 4(1.5)+9(0)=6 | | 3.64x+100=13.2496+10x | | 2.6x+2.6=17 | | 22n-7= | | 4+3i=5 | | 4m=21 | | 4x+9(0)=6 | | 3(5y+3)=2(3y-2) | | 8-1/5 | | 42=k/41 | | 21=4m | | 4+3i= | | 2y+5=3(4y+-5) | | 80=8x+24 | | 2/3x+1=19 | | 4(0)+9y=6 | | 80x=8x+24 | | 0.04y=.8 | | 3*(x-y)-x/2-4=5y-2*(2y-3x)-6 | | 3a-12=15+6a | | 80x=8x+3 |