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anonymous
 one year ago
A system of equations is shown below:
3x + 7y = 16
9x + 5y = 16
Part A: Create an equivalent system of equations by replacing one equation with the sum of that equation and a multiple of the other. Show the steps to do this. (6 points)
Part B: Show that the equivalent system has the same solution as the original system of equations.
anonymous
 one year ago
A system of equations is shown below: 3x + 7y = 16 9x + 5y = 16 Part A: Create an equivalent system of equations by replacing one equation with the sum of that equation and a multiple of the other. Show the steps to do this. (6 points) Part B: Show that the equivalent system has the same solution as the original system of equations.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I only need help with part B

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1ok... so what solution did you get..?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1yes can you post the solution to part A

anonymous
 one year ago
Best ResponseYou've already chosen the best response.06x+14y=32 I got this I multiplied first equation by 2

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1ok.... this is what I would have done I would multiply every term in the 1st equation by 3. this would allow you to eliminate x equation 2 doesn't change 9x  21y = 48 9x +5y = 16 add the 2 equations  16y = 64 so y = 4 substitute this into either of the original equations to find x. does that make sense...?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes thanks you soo much

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1ok... so when you get the solution part B seems to be asking you to substitute the values into 9x  21y = 48 to show the solution is correct
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