Solve by Substitution x+y=8 , y=-5x

Math
,
Replace all occurrences of with in each equation.
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Replace all occurrences of in with .
Simplify .
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Remove parentheses.
Subtract from .
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 .
Divide by .
Replace all occurrences of with in each equation.
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Replace all occurrences of in with .
Multiply by .
The solution to the system is the complete set of ordered pairs that are valid solutions.
The result can be shown in multiple forms.
Point Form:
Equation Form:
Solve by Substitution x+y=8 , y=-5x


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