ln(7x+15)=ln(4x-9)

Simple and best practice solution for ln(7x+15)=ln(4x-9) 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(7x+15)=ln(4x-9) equation:


Simplifying
ln(7x + 15) = ln(4x + -9)

Reorder the terms:
ln(15 + 7x) = ln(4x + -9)
(15 * ln + 7x * ln) = ln(4x + -9)
(15ln + 7lnx) = ln(4x + -9)

Reorder the terms:
15ln + 7lnx = ln(-9 + 4x)
15ln + 7lnx = (-9 * ln + 4x * ln)
15ln + 7lnx = (-9ln + 4lnx)

Solving
15ln + 7lnx = -9ln + 4lnx

Solving for variable 'l'.

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

Add '9ln' to each side of the equation.
15ln + 9ln + 7lnx = -9ln + 9ln + 4lnx

Combine like terms: 15ln + 9ln = 24ln
24ln + 7lnx = -9ln + 9ln + 4lnx

Combine like terms: -9ln + 9ln = 0
24ln + 7lnx = 0 + 4lnx
24ln + 7lnx = 4lnx

Add '-4lnx' to each side of the equation.
24ln + 7lnx + -4lnx = 4lnx + -4lnx

Combine like terms: 7lnx + -4lnx = 3lnx
24ln + 3lnx = 4lnx + -4lnx

Combine like terms: 4lnx + -4lnx = 0
24ln + 3lnx = 0

Factor out the Greatest Common Factor (GCF), '3ln'.
3ln(8 + x) = 0

Ignore the factor 3.

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 '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Add '-1x' to each side of the equation. x + -1x = -8 + -1x Combine like terms: x + -1x = 0 0 = -8 + -1x Simplifying 0 = -8 + -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:

| 4s*2r= | | 2(2n+4)=8(7n+4)+7 | | -5x-35=31-x | | 5x+6=-x-18 | | 6x^2+11x-7=2x-1 | | 2-3(x+4)=-3x-10 | | 4s*6s= | | T^4-6t^3-16t^2=0 | | 2y=16-3x | | -x+4-7x=-20 | | 0.8+k=10 | | 306-18x=400 | | 6x+16=x+60 | | 4r*6s= | | 3y=2x-21 | | -5x-8=-4x-20 | | 7-3(x+2)=9+x | | 9x-(3x-20)=74 | | f(x)=ln(10x)dx | | 15b+81b= | | 5y-9+y+36=5y+30-2y | | 7x+3=4x+18 | | 120x+60=90 | | 15-12=x/-5 | | 60x+120=90x | | 4sinx^1/2 | | 6x1/5 | | 0=-16t^2+96t-2500 | | .1(x-6)+.5=1-.4(12-2x)-.5 | | 5b*9b= | | 11z=-44 | | A-8(42)=650 |

Equations solver categories