2lg(x-1)=4

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Solution for 2lg(x-1)=4 equation:


Simplifying
2lg(x + -1) = 4

Reorder the terms:
2gl(-1 + x) = 4
(-1 * 2gl + x * 2gl) = 4
(-2gl + 2glx) = 4

Solving
-2gl + 2glx = 4

Solving for variable 'g'.

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

Reorder the terms:
-4 + -2gl + 2glx = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -2gl + 2glx = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + -1gl + glx)' equal to zero and attempt to solve: Simplifying -2 + -1gl + glx = 0 Solving -2 + -1gl + glx = 0 Move all terms containing g to the left, all other terms to the right. Add '2' to each side of the equation. -2 + -1gl + 2 + glx = 0 + 2 Reorder the terms: -2 + 2 + -1gl + glx = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1gl + glx = 0 + 2 -1gl + glx = 0 + 2 Combine like terms: 0 + 2 = 2 -1gl + glx = 2 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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