SOLUTION: I am having serious problem trying to solve by elimination method 7x-8y=-41 8x+7y=50 Soution set is Thank you for your help.

Question 404340: I am having serious problem trying to solve by elimination method
7x-8y=-41
8x+7y=50
Soution set is
Thank you for your help.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
I am having serious problem trying to solve by elimination method
7x - 8y = -41
8x + 7y = 50
:
We need to get the coefficient of one of the variables (x or Y) to be the same value.
We will do this to y, then we can add the equations
:
multiply the 1st equation by 7, multiply the 2nd equation by 8; results
49x - 56y = -287
64x + 56y = 400
------------------adding eliminates y, find x
113x + 0 = 113
x =
x = 1
:
Find y using the 2nd original equation
8 + 7y = 50
7y = 50 - 8
7y = 42
y =
y = 6
:
:
Check solution in the 1st original equation
7x - 8y = -41
7(1) - 8(6) = -41
7 - 48 = 41; confirms our solutions of x = 1, y = 6
:
:
did this clear up some of the trouble you are having with these problems?
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