Algebra Examples

Determine if Dependent, Independent, or Inconsistent
Solve the system of equations.
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Reorder and .
Move to the left side of the equation because it contains a variable.
Multiply each equation by the value that makes the coefficients of opposite.
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Multiply by to get .
Simplify the left side.
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Multiply by to get .
Multiply by to get .
Multiply by to get .
Add the two equations together to eliminate from the system.
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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Since does not contain the variable to solve for, move it to the right side of the equation by adding to both sides.
Add and to get .
Divide each term by and simplify.
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Divide each term in by .
Reduce the expression by cancelling the common factors.
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Cancel the common factor.
Divide by to get .
Divide by to get .
This is the final solution to the independent system of equations.
Since the system has a point of intersection, the system is independent.
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