SOLUTION: Find the values of x and y that solve the following system of equations. 3x+5y=25 -7x+4y=20

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Question 155455: Find the values of x and y that solve the following system of equations.
3x+5y=25
-7x+4y=20

Answer by oscargut(2103)   (Show Source): You can put this solution on YOUR website!


using elimination method
and doing:
1st eq by (4) and 2nd by(-5)


adding:

then
using 1st eq

then


Answer: x=0,y=5

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