Solve by Addition/Elimination 9a-3b=3 -3a+b=-1

Math
Multiply each equation by the value that makes the coefficients of opposite.
Simplify.
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Simplify .
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Apply the distributive property.
Multiply by .
Multiply by .
Add the two equations together to eliminate from the system.
Since , the equations intersect at an infinite number of points.
Infinite number of solutions
Solve one of the equations for .
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Subtract from both sides of the equation.
Divide each term by and simplify.
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Divide each term in by .
Cancel the common factor of .
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Cancel the common factor.
Divide by .
Simplify each term.
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Divide by .
Cancel the common factor of and .
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Factor out of .
Cancel the common factors.
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Factor out of .
Cancel the common factor.
Rewrite the expression.
Divide by .
The solution is the set of ordered pairs that make true.
Solve by Addition/Elimination 9a-3b=3 -3a+b=-1


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