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.

Question

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.

cwrw238 · Answer

adding the 2 equations is easy - just add the 2 terms in x, 2 terms in y and the 2 numbers

then i suggest you multiply the first equation by 2   ( do this term by term)