lg(x+7)+lg(x+1)=2

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Solution for lg(x+7)+lg(x+1)=2 equation:


Simplifying
lg(x + 7) + lg(x + 1) = 2

Reorder the terms:
gl(7 + x) + lg(x + 1) = 2
(7 * gl + x * gl) + lg(x + 1) = 2
(7gl + glx) + lg(x + 1) = 2

Reorder the terms:
7gl + glx + gl(1 + x) = 2
7gl + glx + (1 * gl + x * gl) = 2
7gl + glx + (1gl + glx) = 2

Reorder the terms:
7gl + 1gl + glx + glx = 2

Combine like terms: 7gl + 1gl = 8gl
8gl + glx + glx = 2

Combine like terms: glx + glx = 2glx
8gl + 2glx = 2

Solving
8gl + 2glx = 2

Solving for variable 'g'.

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

Reorder the terms:
-2 + 8gl + 2glx = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + 8gl + 2glx = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + 4gl + glx) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + 4gl + glx)' equal to zero and attempt to solve: Simplifying -1 + 4gl + glx = 0 Solving -1 + 4gl + glx = 0 Move all terms containing g to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 4gl + 1 + glx = 0 + 1 Reorder the terms: -1 + 1 + 4gl + glx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 4gl + glx = 0 + 1 4gl + glx = 0 + 1 Combine like terms: 0 + 1 = 1 4gl + glx = 1 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.

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