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`-x + 3y = 17, 4x + 3y = 7` Use any method to solve the system.

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EQ1:  `-x+3y=17`

EQ2:  `4x+3y=7`

To solve this system of equation, let's apply substitution method. To do so,  isolate the x in the first equation.




`x=-17 + 3y`

Then, plug-in this to the second equation. 



And, solve for y.






Now that the value of y is known, solve for x. Plug-in y = 5 to the first equation.








Therefore, the solution is (-2,5).

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loves2learn | Student

Multiply first equation by 4.


After multiplying we have the following system:




add the two equations together to eliminate x from the system.



find y



substitute the value for y into the original equation to solve for x.