Explain, in complete sentences, how you would use the elimination method to solve the following system of equations. Provide the solution to the system.
6x-5y=4
9x+4y=-17

Question

Explain, in complete sentences, how you would use the elimination method to solve the following system of equations. Provide the solution to the system.
6x-5y=4
9x+4y=-17

anonymous · Answer

multiply the first equation by four
multiply the second equation by five
add the two equations together
the $y$ terms will add up to zero, leaving one equation in one unknown, namely (x\)
solve for $x$
replace $x$ by your solution in either of the original equations and solve for $y$

anonymous · Answer

those are fairly complete sentences
you still have to do the calculation

anonymous · Answer

These kinds of questions really need the process of elimination in order to be solved.  Obviously, since the variables x and y are present in the equations, the primary equation is "y = mx + b" and in order to get it to that format, you must be able to isolate the variable y onto the left side.  This is how it will be done: |dw:1340589549969:dw|


See how I moved everything to the left side by eliminating the numbers? That's basically how it's done :) Here is the other equation.

|dw:1340589676667:dw|

I really hope I helped! Not sure if the equation was correct, but I did my best :)