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How do you solve by substitution $6 x + 2 y = - 2$ $6x + 2y = -2$ and $4 x + y = 1$ $4x + y = 1$ ?

1 Answer

Jun 7, 2015

Solution would be x=2, y= -7

From the second equation it is y= 1-4x. Now substitute for y in the first equation and solve for x as follows:

6x+ 2(1-4x)=-2
-2x +2= -2
-2x= -4, x=2. Then y= -7

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