If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7k2 + -13 = -9k Reorder the terms: -13 + 7k2 = -9k Solving -13 + 7k2 = -9k Solving for variable 'k'. Reorder the terms: -13 + 9k + 7k2 = -9k + 9k Combine like terms: -9k + 9k = 0 -13 + 9k + 7k2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. -1.857142857 + 1.285714286k + k2 = 0 Move the constant term to the right: Add '1.857142857' to each side of the equation. -1.857142857 + 1.285714286k + 1.857142857 + k2 = 0 + 1.857142857 Reorder the terms: -1.857142857 + 1.857142857 + 1.285714286k + k2 = 0 + 1.857142857 Combine like terms: -1.857142857 + 1.857142857 = 0.000000000 0.000000000 + 1.285714286k + k2 = 0 + 1.857142857 1.285714286k + k2 = 0 + 1.857142857 Combine like terms: 0 + 1.857142857 = 1.857142857 1.285714286k + k2 = 1.857142857 The k term is 1.285714286k. Take half its coefficient (0.642857143). Square it (0.4132653063) and add it to both sides. Add '0.4132653063' to each side of the equation. 1.285714286k + 0.4132653063 + k2 = 1.857142857 + 0.4132653063 Reorder the terms: 0.4132653063 + 1.285714286k + k2 = 1.857142857 + 0.4132653063 Combine like terms: 1.857142857 + 0.4132653063 = 2.2704081633 0.4132653063 + 1.285714286k + k2 = 2.2704081633 Factor a perfect square on the left side: (k + 0.642857143)(k + 0.642857143) = 2.2704081633 Calculate the square root of the right side: 1.506787365 Break this problem into two subproblems by setting (k + 0.642857143) equal to 1.506787365 and -1.506787365.Subproblem 1
k + 0.642857143 = 1.506787365 Simplifying k + 0.642857143 = 1.506787365 Reorder the terms: 0.642857143 + k = 1.506787365 Solving 0.642857143 + k = 1.506787365 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.642857143' to each side of the equation. 0.642857143 + -0.642857143 + k = 1.506787365 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + k = 1.506787365 + -0.642857143 k = 1.506787365 + -0.642857143 Combine like terms: 1.506787365 + -0.642857143 = 0.863930222 k = 0.863930222 Simplifying k = 0.863930222Subproblem 2
k + 0.642857143 = -1.506787365 Simplifying k + 0.642857143 = -1.506787365 Reorder the terms: 0.642857143 + k = -1.506787365 Solving 0.642857143 + k = -1.506787365 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.642857143' to each side of the equation. 0.642857143 + -0.642857143 + k = -1.506787365 + -0.642857143 Combine like terms: 0.642857143 + -0.642857143 = 0.000000000 0.000000000 + k = -1.506787365 + -0.642857143 k = -1.506787365 + -0.642857143 Combine like terms: -1.506787365 + -0.642857143 = -2.149644508 k = -2.149644508 Simplifying k = -2.149644508Solution
The solution to the problem is based on the solutions from the subproblems. k = {0.863930222, -2.149644508}
| x+b+23.34y=2b+3y+x | | 7x+50=3x | | 7(t-3)+4t=3(7+t) | | 8x+35=155 | | k/3=-11 | | x+y=4y+3-2x | | -13x+38=(-6x)-25 | | a(b-x)-b(2a-x)=6 | | a+b+c=9a-9b+9 | | 2a+3b+4c=9a-9b+9c | | 2.8d=2.1 | | x+y=4z-10 | | 3x+(10x-x)2.2= | | 2a+3b+4c=9abc | | 92-2x=10+20 | | -2p+10=-12p-20 | | B-5x=-3 | | 128-N=48 | | 3(k+2)-5(k-2)=-2k-4 | | -x^3-5x^2=6x | | 35.50=1.7n+1.5 | | -4+10q=10q-8 | | 3p+2=-4 | | (9x-6)3power=9 | | 128-N=46 | | 6x^2-400=0 | | y=3x^4-2x^3+74x^2-50x-25 | | 25x^2+1=37 | | 6x^2-400=9 | | 4e=36 | | 2/3*54 | | (9-6)3=9 |