SOLUTION: Having Trouble understanding the procedure for finding the answer. 1) Solve the system using substitution of linear equations. the 2 linear equations are: a)2x + 3y = -4

Algebra ->  Linear-equations -> SOLUTION: Having Trouble understanding the procedure for finding the answer. 1) Solve the system using substitution of linear equations. the 2 linear equations are: a)2x + 3y = -4      Log On


   

Question 128719: Having Trouble understanding the procedure for finding the answer.

1) Solve the system using substitution of linear equations.
the 2 linear equations are:
a)2x + 3y = -4 b)y - 2x = 4

thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system using substitution of linear equations.
the 2 linear equations are:
a)2x + 3y = -4
b)y - 2x = 4
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y = 2x+4
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Substitute into the other equation and solve for "x":
2x + 3(2x+4) = -4
8x + 12 = -4
8x = -16
x = -2
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Since y = 2x+4, y = 2(-2)+4 = 0
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Solution (-2,0)
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Cheers,
Stan H.