Precalculus Examples

,
Step 1
Multiply each equation by the value that makes the coefficients of opposite.
Step 2
Simplify.
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Simplify the left side.
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Simplify .
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Apply the distributive property.
Multiply by .
Simplify the right side.
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Multiply by .
Step 3
Add the two equations together to eliminate from the system.
Step 4
Divide each term in by and simplify.
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Divide each term in by .
Simplify the left side.
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Cancel the common factor of .
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Cancel the common factor.
Divide by .
Simplify the right side.
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Divide by .
Step 5
Substitute the value found for into one of the original equations, then solve for .
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Substitute the value found for into one of the original equations to solve for .
Move all terms not containing to the right side of the equation.
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Subtract from both sides of the equation.
Subtract from .
Divide each term in by and simplify.
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Divide each term in by .
Simplify the left side.
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Cancel the common factor of .
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Cancel the common factor.
Divide by .
Simplify the right side.
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Divide by .
Step 6
The solution to the independent system of equations can be represented as a point.
Step 7
The result can be shown in multiple forms.
Point Form:
Equation Form:
Step 8
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