ln(x-8)-ln(x+9)=ln(x-7)

Simple and best practice solution for ln(x-8)-ln(x+9)=ln(x-7) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for ln(x-8)-ln(x+9)=ln(x-7) equation:


Simplifying
ln(x + -8) + -1ln(x + 9) = ln(x + -7)

Reorder the terms:
ln(-8 + x) + -1ln(x + 9) = ln(x + -7)
(-8 * ln + x * ln) + -1ln(x + 9) = ln(x + -7)
(-8ln + lnx) + -1ln(x + 9) = ln(x + -7)

Reorder the terms:
-8ln + lnx + -1ln(9 + x) = ln(x + -7)
-8ln + lnx + (9 * -1ln + x * -1ln) = ln(x + -7)
-8ln + lnx + (-9ln + -1lnx) = ln(x + -7)

Reorder the terms:
-8ln + -9ln + lnx + -1lnx = ln(x + -7)

Combine like terms: -8ln + -9ln = -17ln
-17ln + lnx + -1lnx = ln(x + -7)

Combine like terms: lnx + -1lnx = 0
-17ln + 0 = ln(x + -7)
-17ln = ln(x + -7)

Reorder the terms:
-17ln = ln(-7 + x)
-17ln = (-7 * ln + x * ln)
-17ln = (-7ln + lnx)

Solving
-17ln = -7ln + lnx

Solving for variable 'l'.

Move all terms containing l to the left, all other terms to the right.

Add '7ln' to each side of the equation.
-17ln + 7ln = -7ln + 7ln + lnx

Combine like terms: -17ln + 7ln = -10ln
-10ln = -7ln + 7ln + lnx

Combine like terms: -7ln + 7ln = 0
-10ln = 0 + lnx
-10ln = lnx

Add '-1lnx' to each side of the equation.
-10ln + -1lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-10ln + -1lnx = 0

Factor out the Greatest Common Factor (GCF), '-1ln'.
-1ln(10 + x) = 0

Ignore the factor -1.

Subproblem 1

Set the factor 'ln' equal to zero and attempt to solve: Simplifying ln = 0 Solving ln = 0 Move all terms containing l to the left, all other terms to the right. Simplifying ln = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Add '-1x' to each side of the equation. x + -1x = -10 + -1x Combine like terms: x + -1x = 0 0 = -10 + -1x Simplifying 0 = -10 + -1x The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 40x^4a^2+16x^2a^3=8x^2a^2 | | -2(5s-5)-10=-2(9s+8)-2 | | 3(x+3)+8x=-13 | | 3(8x-2)=4(5x+6) | | 5*cos(x)-5*sin(x)=0 | | 25v=650 | | 2x+x+(x-3)=25 | | 5cosx-5sinx=0 | | 3(12x+4)=36x-10 | | 7=2x+21 | | -3(3p+5)-2(6-14p)=3(7+6p) | | 10/4=n/4 | | 3(9x+4)=27x-5 | | 7-2(x-3)=7-5(4+x)+5 | | (8x-40)/64 | | -6x+7x-5=20 | | 75.6/7.2 | | 2000-3x=4039 | | z^2-4i=o | | -6+8x=2 | | 7=-3x-14 | | n-2.7=13.4 | | 4x^2+9y^2+24x-36y=0 | | w-13=77 | | 13+2x=34 | | 4e^5x=2188 | | x+42=83 | | -4+(-3)+4=5y+10y-1 | | 3x*2-9x+12=0 | | 5X+7X+14=26 | | 3=5y-15 | | 2(x+2)=4(0.5x-8) |

Equations solver categories