SOLUTION: 9) how to solve y=2x+10 with the substitution of y=-2x-6
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Question 395470: 9) how to solve y=2x+10 with the substitution of y=-2x-6
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the first equation.
Plug in
Add to both sides.
Subtract from both sides.
Combine like terms on the left side.
Combine like terms on the right side.
Divide both sides by to isolate .
Reduce.
Go back to the first equation.
Plug in
Multiply
Add
So the solutions are and which form the ordered pair (-4,2)
So the system is consistent and independent.
If you need more help, email me at jim_thompson5910@hotmail.com
Also, feel free to check out my tutoring website
Jim
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