Finite Math Examples

Find the Roots (Zeros) log of x+3- log of 3 = log of 10x+3
Step 1
Use the quotient property of logarithms, .
Step 2
For the equation to be equal, the argument of the logarithms on both sides of the equation must be equal.
Step 3
Solve for .
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Step 3.1
Multiply both sides by .
Step 3.2
Simplify.
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Step 3.2.1
Simplify the left side.
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Step 3.2.1.1
Cancel the common factor of .
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Step 3.2.1.1.1
Cancel the common factor.
Step 3.2.1.1.2
Rewrite the expression.
Step 3.2.2
Simplify the right side.
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Step 3.2.2.1
Simplify .
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Step 3.2.2.1.1
Apply the distributive property.
Step 3.2.2.1.2
Multiply.
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Step 3.2.2.1.2.1
Multiply by .
Step 3.2.2.1.2.2
Multiply by .
Step 3.3
Solve for .
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Step 3.3.1
Move all terms containing to the left side of the equation.
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Step 3.3.1.1
Subtract from both sides of the equation.
Step 3.3.1.2
Subtract from .
Step 3.3.2
Move all terms not containing to the right side of the equation.
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Step 3.3.2.1
Subtract from both sides of the equation.
Step 3.3.2.2
Subtract from .
Step 3.3.3
Divide each term in by and simplify.
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Step 3.3.3.1
Divide each term in by .
Step 3.3.3.2
Simplify the left side.
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Step 3.3.3.2.1
Cancel the common factor of .
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Step 3.3.3.2.1.1
Cancel the common factor.
Step 3.3.3.2.1.2
Divide by .
Step 3.3.3.3
Simplify the right side.
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Step 3.3.3.3.1
Move the negative in front of the fraction.
Step 4