ln(x+3)+ln(x+1)=ln(x+7)

Simple and best practice solution for ln(x+3)+ln(x+1)=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+3)+ln(x+1)=ln(x+7) equation:


Simplifying
ln(x + 3) + ln(x + 1) = ln(x + 7)

Reorder the terms:
ln(3 + x) + ln(x + 1) = ln(x + 7)
(3 * ln + x * ln) + ln(x + 1) = ln(x + 7)
(3ln + lnx) + ln(x + 1) = ln(x + 7)

Reorder the terms:
3ln + lnx + ln(1 + x) = ln(x + 7)
3ln + lnx + (1 * ln + x * ln) = ln(x + 7)
3ln + lnx + (1ln + lnx) = ln(x + 7)

Reorder the terms:
3ln + 1ln + lnx + lnx = ln(x + 7)

Combine like terms: 3ln + 1ln = 4ln
4ln + lnx + lnx = ln(x + 7)

Combine like terms: lnx + lnx = 2lnx
4ln + 2lnx = ln(x + 7)

Reorder the terms:
4ln + 2lnx = ln(7 + x)
4ln + 2lnx = (7 * ln + x * ln)
4ln + 2lnx = (7ln + lnx)

Solving
4ln + 2lnx = 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.
4ln + -7ln + 2lnx = 7ln + -7ln + lnx

Combine like terms: 4ln + -7ln = -3ln
-3ln + 2lnx = 7ln + -7ln + lnx

Combine like terms: 7ln + -7ln = 0
-3ln + 2lnx = 0 + lnx
-3ln + 2lnx = lnx

Add '-1lnx' to each side of the equation.
-3ln + 2lnx + -1lnx = lnx + -1lnx

Combine like terms: 2lnx + -1lnx = 1lnx
-3ln + 1lnx = lnx + -1lnx

Combine like terms: lnx + -1lnx = 0
-3ln + 1lnx = 0

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

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 '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 0 Move all terms containing l to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Add '-1x' to each side of the equation. x + -1x = 3 + -1x Combine like terms: x + -1x = 0 0 = 3 + -1x Simplifying 0 = 3 + -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:

| 8x-7y-(3-6y)=0 | | 5(x+2)-3x=18 | | 11z-15z= | | E(x)=2 | | 10x+3=2(3x-2)+3(2x-3) | | 7-2w=-1 | | 6(x+3)=x+3(4-x) | | 3(x)-2=4 | | (6-t)(5-2t)=0 | | 4-x=0 | | -1+9(x^2)=0 | | -5-2x=0 | | -7-4x=0 | | x^4-x^2=1 | | 2x=-7(1000-x) | | 3(2x-1)-2(x-2)=6 | | y^2=x+3 | | (x+7)(x+8)(x+4)(x+11)+20=0 | | x^2y^2+2x^2y-2xy^2-4xy-3x^2+y^2+6x+2y-3=0 | | 6-10y=15-4y | | x*3x*8x=192 | | 24x^3=192 | | 24x^2=192 | | -121=x^2+22x | | x^4+x^3-7x^2-x+6=0 | | 5x+14=50-4x | | a=14x+8y | | a=x*14+y*8 | | x*14+y*8=a | | x*14+y*8=102 | | 3x=150 | | (2x-1)(3x+1)=0 |

Equations solver categories