What is the value for x in the following system :
x - y = 6
2x - y = 0
*Step By Step Instructions Please*
these are simultaneous linear equation solution are as
multiply equation 1 by 2 we will get
2x - 2y = 12
now subtract equation 1 and 2 we will get
2x - 2y - 2x + y = 12 - 0
- y = 12
and y = -12
put the value of y in equation 1 we will get the value of x
x - (-12)= 6
x + 12 = 6
x = -6
now you can verify both equation by putting the value of x and y in both equations
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