SOLUTION: 2x+y=5
2y=10-4x
solve this using substitution
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Question 178399This question is from textbook algebra tools for a changing world
: 2x+y=5
2y=10-4x
solve this using substitution
This question is from textbook algebra tools for a changing world
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the first equation.
Multiply EVERY term by 2
Plug in
Combine like terms on the left side.
Subtract from both sides.
Combine like terms on the right side.
Simplify.
Since this equation is ALWAYS true for any x value, this means x can equal any number.
So there are an infinite number of solutions.
This means that the system is dependent.
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